Experience high-quality sound with the Little Dot MKIII MK3 Headphone Tube Amplifier. This amplifier is suitable for use with a variety of electronic devices and is compatible with different voltage ranges from 110V to 240V. The brand, Little Dot, is known for producing high-quality audio equipment and this model, MK III, lives up to their reputation. This tube amplifier is perfect for those who are looking for an exceptional listening experience. Its features include multiple inputs and outputs, making it easy to connect to other devices. The amplifier is designed to enhance sound quality and make the listening experience more enjoyable. The box damaged. Thanks for looking. Good luck.

Experience high-quality sound with the Little Dot MKIII MK3 Headphone Tube Amplifier. This amplifier is suitable for use with a variety of electronic devices and is compatible with different voltage ranges from 110V to 240V. The brand, Little Dot, is known for producing high-quality audio equipment and this model, MK III, lives up to their reputation. This tube amplifier is perfect for those who are looking for an exceptional listening experience. Its features include multiple inputs and outputs, making it easy to connect to other devices. The amplifier is designed to enhance sound quality and make the listening experience more enjoyable. The box damaged. Thanks for looking. Good luck.

Used but in great condition little dot mk iii tube amplifier. Sounds phenomenal with dynamic and even iem yeah I said iem! Tubes still work great, but havent done any tube rolling.

Experience high-quality sound with the Little Dot MKIII MK3 Headphone Tube Amplifier. This amplifier is suitable for use with a variety of electronic devices and is compatible with different voltage ranges from 110V to 240V. The brand, Little Dot, is known for producing high-quality audio equipment and this model, MK III, lives up to their reputation. This tube amplifier is perfect for those who are looking for an exceptional listening experience. Its features include multiple inputs and outputs, making it easy to connect to other devices. The amplifier is designed to enhance sound quality and make the listening experience more enjoyable. The box damaged. Thanks for looking. Good luck.

This is a fantastic sounding headphone amplifier and dac. I’ve used it with Sennheiser HD-650 and HiFi Man planar headphones as my go to choices. The amplifier has a very smooth and musical quality with ample power to drive power hungry headphones like the Sennheiser. There is less than 100 hours of use on the tubes plus the 2 additional sets provided fun tube rolling experience. This Little Dot MK III OTL Vacuum Tube headphone Amplifier with JDS Labs ODAC is perfect for those who want to enhance their audio experience. With two channels, one input and two outputs, this black and silver amplifier is ideal for any music lover. The stereo L/R RCA audio inputs and outputs, along with a headphone jack, ensure that you can use this amplifier with a variety of devices. This tube amplifier is made by Little Dot and is a model MK III. It is an amplifier class A product and was manufactured in China. The product is ideal for people who are looking for a high-quality audio experience without any compromise. Included in auction - JDS Labs Objective 2 ODAC for use with computer and digital sources. - 2 additional sets of Russian preamp tubes for personalized tube rolling to tailor the sound to your personal preference. This amp is in excellent condition and has less than 100 hours of use on it. - All cables and Odac power supply included.

couple (n. 2 pieces) GE 5654 USA 6AK5 EF95 tube vacuum nos for tube amplifier little dot 3 4 III IV

  TUBE HUNTER VACUUM TUBE GEMS THESE ARE THE SPECIFICS OF THE TUBE/TUBES FOR SALE THESE ARE THE TUBE/TUBES FOR SALE:    MANUFACTURER:                               CBS HYTRON PRODUCTION CITY:                                     USA TUBE TYPE:    MINIATURE DESIGNATION:                                             JHY 6AK5 YEAR:    1952 MONTH OR WEEK    30 Date code match   YES SILK SCREEN CONDITION %:                    100% MICA:    2 PLATES:    DEEP BLACK GM %:     122% 122% SINGLE/PAIR/QUAD/MULTI:     PAIR GETTER:                                                          D GETTER DATE CODE                                                  30TH WEEK OF 1952 NOTE: TWO PAIRS ARE AVAILABLE. THE SECOND PAIR TO BE SHIPPED IS OF THE EXACT SAME BOXES, CONSTRUCTION, AND TEST THE SAME, BUT  ARE DATED 1952 WEEKS 48, AND 52. I WAS BLOWN AWAY WHEN I PUT THESE IN MY LITTE DOT AND PUT IN MY STANDARD PAVAROTTI CD. IT WAS LIKE I WAS SITTING IN THE SECOND ROW CENTER CUT. THE MAESTRO WAS SINGING DIRECTLY TO ME AND EVERYONE JUST FADED INTO THE BACKGROUND......HEAVENLY MUSIC !!!! IF YOU THINK THAT THERE ARE TUBES BETTER THAN THESE............YOU WOULD BE WRONG! VINTAGE NOS NIB ABSOLUTELY BRAND NEW NEVER BEEN USED CBS HYTRON 6AK5 TUBES. MADE FOR THE UNITED STATES MILITARY.  Very sweet music inside.  They sound great in my headphone amp, and they will in yours! On my tester a B&K 747 tester:    Below 55 = BAD      55-66 = ?     65 -100 = Good     100-120+ = NOS    I want to see you happy with your purchase. I will never sell a tube that is below standard…… I have sold many tubes here on Ebay, and all my customers have been completely satisfied. I will work with you in good faith if there are any problems, or if you are unsatisfied in any way. I want your business now and in the future, so I assume you are the boss, and I am the employee. All tubes are tested for shorts, continuity, and emissions. I prefer PayPal. ALL CUSTOMERS PLEASE READ ALL NOTES BEFORE BUYING FROM ME !! 1.  RETURNS: It is my highest desire that you are completely satisfied with your purchase from me. I will bend over backwards to make sure that you are a happy customer. If anything you buy from me is less than satisfactory, message me BEFORE you either open a case or hit the “item not as described” button. Sound quality is tremendously SUBJECTIVE. For tubes returned for noise or sound quality of any kind you pay for the shipping we refund the purchase. We refund the price of the item NOT THE SHIPPING COST. If we sent the wrong tube we will of course pay for return shipping. For any tubes that are DOA we require that you send a us a picture of the shipping box to show us the damage. We test EVERY tube sent out and none should be DOA unless broken in shipping. 2.    PLEASE NOTE:  Tube silkscreen (lettering on the tubes) is VERY fragile. It can be wiped off and destroyed VERY easily. If you wipe off the silkscreen while handling the tube you diminish their value by up to 70%. DO NOT handle the tubes or hold them from the cylinder. ALWAYS hold them from the ENDS. If you are returning tubes and they are not in the same condition cosmetically I cannot give you a full refund. THIS IS VERY IMPORTANT. 3.  UNLESS YOU MAKE ARRANGEMENTS WITH US BEFORE YOU PURCHASE, YOU MUST PAY FOR ITEMS PURCHASED WITHIN 2 DAYS OR A CASE WILL BE OPENED FOR AN UNPAID ITEM!!! 4. TESTING: I test all tubes that I sell in one way or another, or I will state untested. I have a B&K 747 tube tester. This is a mutual conductance tester. It give a percentage value of gm for the tube under test and checks for shorts and grid emissions. I also use a Tektronix curve tracer for testing triodes. I give a number of evaluations for tubes. One evaluation is a screen shot of the tube with a high voltage applied to the plate. This helps the buyer see the linearity of the tube in question at the highest voltage the tube will see in a real circuit. The Curve tracer steps the triode through 10 gate/grid voltages starting with -10 volts and going to 0 volts. The lines show how the tube conducts throughout that range. At 0 volt the tube is at max conduction and is the top line on the display. It is easy at that point to take where that top line intersects the plate voltage, find the milliamp level and compare it to the datasheet. I give those numbers for you in the Item condition box. To further help the buyer I also include the Design values, for gm and ma readings in the table. This can then be compared to other tube sellers using inferior test methods such as Hickok,  Amplitrex, and other testers. The Tektronix curve tracer gives values within 3% of the actual value. The very best portable testers only can approach 10% accuracy.5.    Please note: The numbers given for gm are what I see on my tester. I DO NOT guarantee that you will see those numbers on your tester. I only guarantee that these tubes will test good, with no shorts, or gas, on a decent calibrated tester. I dont guarantee or imply anything else. 6. VERY IMPORTANT!!! Vintage tube testers almost always, due to age, have VERY LOW HEATER VOLTAGES!!!  Every tester I have ever bought is below 6 volts when selecting 6.3 volts. They average 5.8 volts. The voltage NEEDS to be 6.3 and 12.6. You can calibrate a vintage tube tester all you want. If the heater voltage is not right, you will NEVER get the right gm value. I have customers complain that their tubes are not the same as what I see on my tester. They say they have a calibrated tube tester. I have 40 tube testers. On all of them I have an outside regulated DC power supply that feeds the tube tester the correct heater voltage. 7. I dont check each and every tube for noise or tone. This is SUBJECTIVE and it is too time consuming. If you dont like the noise level or the tone we offer a hassle free refund policy.  International customers note: 1. Please wait for us to invoice you for the correct amount. If you have purchased more than one item, we must calculate how much the shipping will be. Shipping will be HIGHER due to insurance and shipping methods needed for expensive item totals. If you are buying only one item this will not be an issue. 2. Under no circumstances will we state on a US customs a declared value of less than the sale price. This is an honesty issue. We are honest with everyone to the best of our ability to do so. We want you to trust that what we say is true. There cannot be that trust, if we make false statements knowingly to anyone. If your country has tariffs/taxes so high that they cause large numbers of normally honest folks to make false statements, we urge you to work for change of those laws. 3 International buyers if you bought more than one item and want combined shipping it will ship in 2 days. 4. And all the Angels sang because the heavenly music was playing and it was turned all the way up.     Listing and template services provided by inkFrog

1 matched pair black plates tubes 2 x JAN Philips 5654 6AK5W EF95 tubes Tested and matched by Anode current. Also for: EF95 = 6AK5 = 6?1? = 6069 = 6F32V = 6F32 = PM05 =6968 = 6J1 =5654 = 6J1-Q = CV850 = E95F = M8100 Test result: all more than 9mA (100%=7mA)

** PLATINUM PERFECT BALANCED PLATES!! * * TEST NEW NOS * GLOTRON 6DJ8 ECC88 6922 Vacuum Tube USED IN LITTLE DOT AMPs BOGEN AMP *Tested No microphonics!TV-7/u Tested! Condition Report: ** Tube TESTED AND sounded good in my BOGEM AMP! No microphonics! ** Tested to be in guaranteed working conditionI tested these on a High Quality Professonal Hickok TV-7/U Tester:TUBEs TEST RESULTs: TUBE: 95/95 - {Minimum Rating of 62/62 for TV-7 Testers are equal to 65% of average new ratings.} If you have Questions or Comments contact me on eBay Check out the photos! TESTED WITH a (TV-7/U) FOR GAS, SHORTS, AND MUTUAL CONDUCTANCE AND ARE MOSTLY STRONG TUBES! I Combine ShippingBefore You Pay. I accept PayPal and Postal M O. Please see click to enlarge photos for condition and quality.Check out My Other Items For Sale!WILL BE SHIPPED OUT FAST! Before bidding please read my shipping and return policy. I WILL COMBINE SHIPPING COST ON MY ITEMS!!! NOTE: International buyers - THE BUYER IS RESPONSIBLE FOR SHIPPING FEES. INTERNATIONAL BIDS WELCOME. I WONT CHANGE DECLARED VALUE ON CUSTOM FORMS AND INTERNATIONAL BUYERS ARE RESPONSIBLE FOR ALL TAXES, CUSTOM FEES, and additional shipping fees. ANY RETURN WILL BE ACCEPTED BUT BUYER WILL PAY SHIPPING FEES AND I WILL NOT REFUND ANY SHIPPING FEES.*TESTED ON Calibrated HICKOK TV-7 B/U*{Minimum Ratings for TV-7 Testers are equal to 65% of average new ratings.}ALL tubes will be ran through a Daniel Nelson calibrated HICKOK TV-7 B/U for a full mutual conductance test. This is a world class tester that is calibrated by the Hickok doctor. Its test results are dead on and you can buy with confidence. If you want to know what the exact Gm rating of the tube is please message me. My Return Policy: Will not accept returns for reasons such as ordered the wrong item, change mind, not what I thought It was, wrong color ordered, item ordered.

Product only comes with 4 tubes and Power Cord. This Little Dot MK II SEPP Tube Headphone Amplifier is the perfect addition for any audiophile looking for a high-quality audio experience. With two channels and analog features, this Little Dot amplifier is perfect for anyone looking to enhance their home audio experience. The sleek black design, along with the Little Dot brand and model, make this headphone amplifier a stylish addition to any home audio setup.

** PLATINUM PERFECT BALANCED PLATES!! * * TEST NEW NOS * GLOTRON 6DJ8 ECC88 6922 Vacuum Tube USED IN LITTLE DOT AMPs BOGEN AMP *Tested No microphonics!TV-7/u Tested! Condition Report: ** Tube TESTED AND sounded good in my BOGEM AMP! No microphonics! ** Tested to be in guaranteed working conditionI tested these on a High Quality Professonal Hickok TV-7/U Tester:TUBEs TEST RESULTs: TUBE: 95/95 - {Minimum Rating of 62/62 for TV-7 Testers are equal to 65% of average new ratings.} If you have Questions or Comments contact me on eBay Check out the photos! TESTED WITH a (TV-7/U) FOR GAS, SHORTS, AND MUTUAL CONDUCTANCE AND ARE MOSTLY STRONG TUBES! I Combine ShippingBefore You Pay. I accept PayPal and Postal M O. Please see click to enlarge photos for condition and quality.Check out My Other Items For Sale!WILL BE SHIPPED OUT FAST! Before bidding please read my shipping and return policy. I WILL COMBINE SHIPPING COST ON MY ITEMS!!! NOTE: International buyers - THE BUYER IS RESPONSIBLE FOR SHIPPING FEES. INTERNATIONAL BIDS WELCOME. I WONT CHANGE DECLARED VALUE ON CUSTOM FORMS AND INTERNATIONAL BUYERS ARE RESPONSIBLE FOR ALL TAXES, CUSTOM FEES, and additional shipping fees. ANY RETURN WILL BE ACCEPTED BUT BUYER WILL PAY SHIPPING FEES AND I WILL NOT REFUND ANY SHIPPING FEES.*TESTED ON Calibrated HICKOK TV-7 B/U*{Minimum Ratings for TV-7 Testers are equal to 65% of average new ratings.}ALL tubes will be ran through a Daniel Nelson calibrated HICKOK TV-7 B/U for a full mutual conductance test. This is a world class tester that is calibrated by the Hickok doctor. Its test results are dead on and you can buy with confidence. If you want to know what the exact Gm rating of the tube is please message me. My Return Policy: Will not accept returns for reasons such as ordered the wrong item, change mind, not what I thought It was, wrong color ordered, item ordered.

Please, after buying this item, check out my other tubes. I will always combine shipping to save you money.______________ Price listed is for All 21 NOS/NIB 5654 6AK5W TUBES FROM A PARTIAL CASE from 1952. Heavy Duty Long Life Military Grade Tubes. These are true NOS, NIB, never used tubes from a partial factory case.All dated 1952. I tested a few of these and all tested NOS. Buy this partial case and never have to buy 5654/6AK5W Tubes Again! All my tubes are 100% satisfaction guaranteed.Being offered at a fair Buy it Now.

  TUBE HUNTER VACUUM TUBE GEMSTHESE ARE THE SPECIFICS OF THE TUBE/TUBES FOR SALE THESE ARE THE TUBE/TUBES FOR SALE:    MANUFACTURER:                               GE PRODUCTION CITY:                                     USA TUBE TYPE:     JAN 5654 6AK5 EF95 DESIGNATION:                                             HEADPHONE HEAVEN YEAR:    1988 MONTH:    WEEK 03 Date code match      SILK SCREEN CONDITION %:                    100% MICA:    2 PLATES:    GREY GM %:     120% + SINGLE/PAIR/QUAD/MULTI:     SINGLE GETTER:                                                          O GETTER DATE CODE                                                    88-03 THIS AUCTION IS FOR PONE PAIR OF HAND MATCHED GE JAN 5654s. THEY WILL MEASURE 120+%This auction is for ONE TUBE !!!!These tubes are absolutely new old stock and new in the original box. NOS NIB. What does this mean for your amp and ears? The tone on these tubes are very transparent, hollow, with great stage presence. They sound great in my headphone amp, and they will in yours! These tubes were made at the end of the vintage era. I think it is better to buy any manufactured goods that were made at the end of of the run. Here is why: After a product is first made there are problems and bugs. As time goes by those bugs are worked out and the product gets refined. The end products are inevitably better than the first. My dad worked at GM for decades and he always told me not to buy the first year run of any model for that very reason.   Normal 0 false false false EN-US X-NONE X-NONE    On my tester a B&K 747 tester:    Below 55 = BAD      55-65 = ?     65 -100 = Good     100-120+ = NOS           ******************************************************************************* I want to see you happy with your purchase. I will never sell a tube that is below standard…… I have sold many tubes here on Ebay, and all my customers have been completely satisfied. I will work with you in good faith if there are any problems, or if you are unsatisfied in any way. I want your business now and in the future, so I assume you are the boss, and I am the employee. All tubes are tested for shorts, continuity, and emissions. I prefer PayPal. ALL CUSTOMERS PLEASE READ ALL NOTES BEFORE BUYING FROM ME !!1.  RETURNS: It is my highest desire that you are completely satisfied with your purchase from me. I will bend over backwards to make sure that you are a happy customer.If anything you buy from me is less than satisfactory, message me BEFORE you either open a case or hit the “item not as described” button.Sound quality is tremendously SUBJECTIVE. For tubes returned for noise or sound quality of any kind you pay for the shipping we refund the purchase. We refund the price of the item NOT THE SHIPPING COST. If we sent the wrong tube we will of course pay for return shipping. For any tubes that are DOA we require that you send a us a picture of the shipping box to show us the damage. We test EVERY tube sent out and none should be DOA unless broken in shipping.2.    PLEASE NOTE:  Tube silkscreen (lettering on the tubes) is VERY fragile. It can be wiped off and destroyed VERY easily. If you wipe off the silkscreen while handling the tube you diminish their value by up to 70%. DO NOT handle the tubes or hold them from the cylinder. ALWAYS hold them from the ENDS. If you are returning tubes and they are not in the same condition cosmetically I cannot give you a full refund. THIS IS VERY IMPORTANT.3.  UNLESS YOU MAKE ARRANGEMENTS WITH US BEFORE YOU PURCHASE, YOU MUST PAY FOR ITEMS PURCHASED WITHIN 2 DAYS OR A CASE WILL BE OPENED FOR AN UNPAID ITEM!!!4. TESTING: I test all tubes that I sell in one way or another, or I will state untested. I have a B&K 747 tube tester. This is a mutual conductance tester. It give a percentage value of gm for the tube under test and checks for shorts and grid emissions. I also use a Tektronix curve tracer for testing triodes. I give a number of evaluations for tubes. One evaluation is a screen shot of the tube with a high voltage applied to the plate. This helps the buyer see the linearity of the tube in question at the highest voltage the tube will see in a real circuit. The Curve tracer steps the triode through 10 gate/grid voltages starting with -10 volts and going to 0 volts. The lines show how the tube conducts throughout that range. At 0 volt the tube is at max conduction and is the top line on the display. It is easy at that point to take where that top line intersects the plate voltage, find the milliamp level and compare it to the datasheet. I give those numbers for you in the Item condition box. To further help the buyer I also include the Design values, for gm and ma readings in the table. This can then be compared to other tube sellers using inferior test methods such as Hickok,  Amplitrex, and other testers. The Tektronix curve tracer gives values within 3% of the actual value. The very best portable testers only can approach 10% accuracy.5.    Please note: The numbers given for gm are what I see on my tester. I DO NOT guarantee that you will see those numbers on your tester. I only guarantee that these tubes will test good, with no shorts, or gas, on a decent calibrated tester. I dont guarantee or imply anything else.6. VERY IMPORTANT!!! Vintage tube testers almost always, due to age, have VERY LOW HEATER VOLTAGES!!!  Every tester I have ever bought is below 6 volts when selecting 6.3 volts. They average 5.8 volts. The voltage NEEDS to be 6.3 and 12.6. You can calibrate a vintage tube tester all you want. If the heater voltage is not right, you will NEVER get the right gm value. I have customers complain that their tubes are not the same as what I see on my tester. They say they have a calibrated tube tester. I have 40 tube testers. On all of them I have an outside regulated DC power supply that feeds the tube tester the correct heater voltage.7. I dont check each and every tube for noise or tone. This is SUBJECTIVE and it is too time consuming. If you dont like the noise level or the tone we offer a hassle free refund policy.  International customers note:1. Please wait for us to invoice you for the correct amount. If you have purchased more than one item, we must calculate how much the shipping will be. Shipping will be HIGHER due to insurance and shipping methods needed for expensive item totals. If you are buying only one item this will not be an issue. 2. Under no circumstances will we state on a US customs a declared value of less than the sale price. This is an honesty issue. We are honest with everyone to the best of our ability to do so. We want you to trust that what we say is true. There cannot be that trust, if we make false statements knowingly to anyone. If your country has tariffs/taxes so high that they cause large numbers of normally honest folks to make false statements, we urge you to work for change of those laws.3 International buyers if you bought more than one item and want combined shipping it will ship in 2 days.4. And all the Angels sang because the heavenly music was playing and it was turned all the way up.    Listing and template services provided by inkFrog

  TUBE HUNTER VACUUM TUBE GEMS THESE ARE THE SPECIFICS OF THE TUBE/TUBES FOR SALE THESE ARE THE TUBE/TUBES FOR SALE:    MANUFACTURER:                               MULLARD PRODUCTION CITY:                                     SIDNEY AUSTRALIA TUBE TYPE:    5654 DESIGNATION:                                             HEADPHONE HEAVEN YEAR:    1960S ? MONTH:     ? Date code match    YES SILK SCREEN CONDITION %:                    100% MICA:    2 PLATES:    BLACK GM %:     121%, 120% SINGLE/PAIR/QUAD/MULTI:     PAIR GETTER:                                                          O GETTER DATE CODE                                                    These MULLARDS sound so awesome!!! The highs are ethereal. The mid are front row center stage and the bass is booming. YOU HAVE TO TRY THEM! I spent a few hours with these in my headphone amp and they are WONDERFUL!!  Here is a  very old vintage set of MULLARD 5654s. Vintage 1960S will tickle your ears.....in a good way. This is an unknown Amperex code, but they are matched and I am pretty sure it is a 1950s or 1960s  construction with black plates being from that era.  Normal 0 false false false EN-US X-NONE X-NONE On my tester a B&K 747 tester:    Below 55 = BAD      55-65 = ?     65 -100 = Good     100-120+ = NOS       I want to see you happy with your purchase. I will never sell a tube that is below standard…… I have sold many tubes here on Ebay, and all my customers have been completely satisfied. I will work with you in good faith if there are any problems, or if you are unsatisfied in any way. I want your business now and in the future, so I assume you are the boss, and I am the employee. All tubes are tested for shorts, continuity, and emissions. I prefer PayPal. ALL CUSTOMERS PLEASE READ ALL NOTES BEFORE BUYING FROM ME !!1.  RETURNS: It is my highest desire that you are completely satisfied with your purchase from me. I will bend over backwards to make sure that you are a happy customer.If anything you buy from me is less than satisfactory, message me BEFORE you either open a case or hit the “item not as described” button.Sound quality is tremendously SUBJECTIVE. For tubes returned for noise or sound quality of any kind you pay for the shipping we refund the purchase. We refund the price of the item NOT THE SHIPPING COST. If we sent the wrong tube we will of course pay for return shipping. For any tubes that are DOA we require that you send a us a picture of the shipping box to show us the damage. We test EVERY tube sent out and none should be DOA unless broken in shipping.2.    PLEASE NOTE:  Tube silkscreen (lettering on the tubes) is VERY fragile. It can be wiped off and destroyed VERY easily. If you wipe off the silkscreen while handling the tube you diminish their value by up to 70%. DO NOT handle the tubes or hold them from the cylinder. ALWAYS hold them from the ENDS. If you are returning tubes and they are not in the same condition cosmetically I cannot give you a full refund. THIS IS VERY IMPORTANT.3.  UNLESS YOU MAKE ARRANGEMENTS WITH US BEFORE YOU PURCHASE, YOU MUST PAY FOR ITEMS PURCHASED WITHIN 2 DAYS OR A CASE WILL BE OPENED FOR AN UNPAID ITEM!!!4. TESTING: I test all tubes that I sell in one way or another, or I will state untested. I have a B&K 747 tube tester. This is a mutual conductance tester. It give a percentage value of gm for the tube under test and checks for shorts and grid emissions. I also use a Tektronix curve tracer for testing triodes. I give a number of evaluations for tubes. One evaluation is a screen shot of the tube with a high voltage applied to the plate. This helps the buyer see the linearity of the tube in question at the highest voltage the tube will see in a real circuit. The Curve tracer steps the triode through 10 gate/grid voltages starting with -10 volts and going to 0 volts. The lines show how the tube conducts throughout that range. At 0 volt the tube is at max conduction and is the top line on the display. It is easy at that point to take where that top line intersects the plate voltage, find the milliamp level and compare it to the datasheet. I give those numbers for you in the Item condition box. To further help the buyer I also include the Design values, for gm and ma readings in the table. This can then be compared to other tube sellers using inferior test methods such as Hickok,  Amplitrex, and other testers. The Tektronix curve tracer gives values within 3% of the actual value. The very best portable testers only can approach 10% accuracy.5.    Please note: The numbers given for gm are what I see on my tester. I DO NOT guarantee that you will see those numbers on your tester. I only guarantee that these tubes will test good, with no shorts, or gas, on a decent calibrated tester. I dont guarantee or imply anything else.6. VERY IMPORTANT!!! Vintage tube testers almost always, due to age, have VERY LOW HEATER VOLTAGES!!!  Every tester I have ever bought is below 6 volts when selecting 6.3 volts. They average 5.8 volts. The voltage NEEDS to be 6.3 and 12.6. You can calibrate a vintage tube tester all you want. If the heater voltage is not right, you will NEVER get the right gm value. I have customers complain that their tubes are not the same as what I see on my tester. They say they have a calibrated tube tester. I have 40 tube testers. On all of them I have an outside regulated DC power supply that feeds the tube tester the correct heater voltage.7. I dont check each and every tube for noise or tone. This is SUBJECTIVE and it is too time consuming. If you dont like the noise level or the tone we offer a hassle free refund policy.  International customers note:1. Please wait for us to invoice you for the correct amount. If you have purchased more than one item, we must calculate how much the shipping will be. Shipping will be HIGHER due to insurance and shipping methods needed for expensive item totals. If you are buying only one item this will not be an issue. 2. Under no circumstances will we state on a US customs a declared value of less than the sale price. This is an honesty issue. We are honest with everyone to the best of our ability to do so. We want you to trust that what we say is true. There cannot be that trust, if we make false statements knowingly to anyone. If your country has tariffs/taxes so high that they cause large numbers of normally honest folks to make false statements, we urge you to work for change of those laws.3 International buyers if you bought more than one item and want combined shipping it will ship in 2 days.4. And all the Angels sang because the heavenly music was playing and it was turned all the way up.    Listing and template services provided by inkFrog

  TUBE HUNTER VACUUM TUBE GEMS THESE ARE THE SPECIFICS OF THE TUBE/TUBES FOR SALE THESE ARE THE TUBE/TUBES FOR SALE:    MANUFACTURER:                               CBS HYTRON PRODUCTION CITY:                                     USA TUBE TYPE:    MINIATURE DESIGNATION:                                             JHY 6AK5 YEAR:    1952 MONTH OR WEEK    30 Date code match   YES SILK SCREEN CONDITION %:                    100% MICA:    2 PLATES:    DEEP BLACK GM %:     122% 122% SINGLE/PAIR/QUAD/MULTI:     PAIR GETTER:                                                          D GETTER DATE CODE                                                  30TH WEEK OF 1952 NOTE: TWO PAIRS ARE AVAILABLE. THE SECOND PAIR TO BE SHIPPED IS OF THE EXACT SAME BOXES, CONSTRUCTION, AND TEST THE SAME, BUT  ARE DATED 1952 WEEKS 48, AND 52. I WAS BLOWN AWAY WHEN I PUT THESE IN MY LITTE DOT AND PUT IN MY STANDARD PAVAROTTI CD. IT WAS LIKE I WAS SITTING IN THE SECOND ROW CENTER CUT. THE MAESTRO WAS SINGING DIRECTLY TO ME AND EVERYONE JUST FADED INTO THE BACKGROUND......HEAVENLY MUSIC !!!! IF YOU THINK THAT THERE ARE TUBES BETTER THAN THESE............YOU WOULD BE WRONG! VINTAGE NOS NIB ABSOLUTELY BRAND NEW NEVER BEEN USED CBS HYTRON 6AK5 TUBES. MADE FOR THE UNITED STATES MILITARY.  Very sweet music inside.  They sound great in my headphone amp, and they will in yours! On my tester a B&K 747 tester:    Below 55 = BAD      55-66 = ?     65 -100 = Good     100-120+ = NOS    I want to see you happy with your purchase. I will never sell a tube that is below standard…… I have sold many tubes here on Ebay, and all my customers have been completely satisfied. I will work with you in good faith if there are any problems, or if you are unsatisfied in any way. I want your business now and in the future, so I assume you are the boss, and I am the employee. All tubes are tested for shorts, continuity, and emissions. I prefer PayPal. ALL CUSTOMERS PLEASE READ ALL NOTES BEFORE BUYING FROM ME !! 1.  RETURNS: It is my highest desire that you are completely satisfied with your purchase from me. I will bend over backwards to make sure that you are a happy customer. If anything you buy from me is less than satisfactory, message me BEFORE you either open a case or hit the “item not as described” button. Sound quality is tremendously SUBJECTIVE. For tubes returned for noise or sound quality of any kind you pay for the shipping we refund the purchase. We refund the price of the item NOT THE SHIPPING COST. If we sent the wrong tube we will of course pay for return shipping. For any tubes that are DOA we require that you send a us a picture of the shipping box to show us the damage. We test EVERY tube sent out and none should be DOA unless broken in shipping. 2.    PLEASE NOTE:  Tube silkscreen (lettering on the tubes) is VERY fragile. It can be wiped off and destroyed VERY easily. If you wipe off the silkscreen while handling the tube you diminish their value by up to 70%. DO NOT handle the tubes or hold them from the cylinder. ALWAYS hold them from the ENDS. If you are returning tubes and they are not in the same condition cosmetically I cannot give you a full refund. THIS IS VERY IMPORTANT. 3.  UNLESS YOU MAKE ARRANGEMENTS WITH US BEFORE YOU PURCHASE, YOU MUST PAY FOR ITEMS PURCHASED WITHIN 2 DAYS OR A CASE WILL BE OPENED FOR AN UNPAID ITEM!!! 4. TESTING: I test all tubes that I sell in one way or another, or I will state untested. I have a B&K 747 tube tester. This is a mutual conductance tester. It give a percentage value of gm for the tube under test and checks for shorts and grid emissions. I also use a Tektronix curve tracer for testing triodes. I give a number of evaluations for tubes. One evaluation is a screen shot of the tube with a high voltage applied to the plate. This helps the buyer see the linearity of the tube in question at the highest voltage the tube will see in a real circuit. The Curve tracer steps the triode through 10 gate/grid voltages starting with -10 volts and going to 0 volts. The lines show how the tube conducts throughout that range. At 0 volt the tube is at max conduction and is the top line on the display. It is easy at that point to take where that top line intersects the plate voltage, find the milliamp level and compare it to the datasheet. I give those numbers for you in the Item condition box. To further help the buyer I also include the Design values, for gm and ma readings in the table. This can then be compared to other tube sellers using inferior test methods such as Hickok,  Amplitrex, and other testers. The Tektronix curve tracer gives values within 3% of the actual value. The very best portable testers only can approach 10% accuracy.5.    Please note: The numbers given for gm are what I see on my tester. I DO NOT guarantee that you will see those numbers on your tester. I only guarantee that these tubes will test good, with no shorts, or gas, on a decent calibrated tester. I dont guarantee or imply anything else. 6. VERY IMPORTANT!!! Vintage tube testers almost always, due to age, have VERY LOW HEATER VOLTAGES!!!  Every tester I have ever bought is below 6 volts when selecting 6.3 volts. They average 5.8 volts. The voltage NEEDS to be 6.3 and 12.6. You can calibrate a vintage tube tester all you want. If the heater voltage is not right, you will NEVER get the right gm value. I have customers complain that their tubes are not the same as what I see on my tester. They say they have a calibrated tube tester. I have 40 tube testers. On all of them I have an outside regulated DC power supply that feeds the tube tester the correct heater voltage. 7. I dont check each and every tube for noise or tone. This is SUBJECTIVE and it is too time consuming. If you dont like the noise level or the tone we offer a hassle free refund policy.  International customers note: 1. Please wait for us to invoice you for the correct amount. If you have purchased more than one item, we must calculate how much the shipping will be. Shipping will be HIGHER due to insurance and shipping methods needed for expensive item totals. If you are buying only one item this will not be an issue. 2. Under no circumstances will we state on a US customs a declared value of less than the sale price. This is an honesty issue. We are honest with everyone to the best of our ability to do so. We want you to trust that what we say is true. There cannot be that trust, if we make false statements knowingly to anyone. If your country has tariffs/taxes so high that they cause large numbers of normally honest folks to make false statements, we urge you to work for change of those laws. 3 International buyers if you bought more than one item and want combined shipping it will ship in 2 days. 4. And all the Angels sang because the heavenly music was playing and it was turned all the way up.     Listing and template services provided by inkFrog

** PLATINUM PERFECT BALANCED PLATES!! * * TEST NEW NOS * GLOTRON 6DJ8 ECC88 6922 Vacuum Tube USED IN LITTLE DOT AMPs BOGEN AMP *Tested No microphonics!TV-7/u Tested! Condition Report: ** Tube TESTED AND sounded good in my BOGEM AMP! No microphonics! ** Tested to be in guaranteed working conditionI tested these on a High Quality Professonal Hickok TV-7/U Tester:TUBEs TEST RESULTs: TUBE: 95/95 - {Minimum Rating of 62/62 for TV-7 Testers are equal to 65% of average new ratings.} If you have Questions or Comments contact me on eBay Check out the photos! TESTED WITH a (TV-7/U) FOR GAS, SHORTS, AND MUTUAL CONDUCTANCE AND ARE MOSTLY STRONG TUBES! I Combine ShippingBefore You Pay. I accept PayPal and Postal M O. Please see click to enlarge photos for condition and quality.Check out My Other Items For Sale!WILL BE SHIPPED OUT FAST! Before bidding please read my shipping and return policy. I WILL COMBINE SHIPPING COST ON MY ITEMS!!! NOTE: International buyers - THE BUYER IS RESPONSIBLE FOR SHIPPING FEES. INTERNATIONAL BIDS WELCOME. I WONT CHANGE DECLARED VALUE ON CUSTOM FORMS AND INTERNATIONAL BUYERS ARE RESPONSIBLE FOR ALL TAXES, CUSTOM FEES, and additional shipping fees. ANY RETURN WILL BE ACCEPTED BUT BUYER WILL PAY SHIPPING FEES AND I WILL NOT REFUND ANY SHIPPING FEES.*TESTED ON Calibrated HICKOK TV-7 B/U*{Minimum Ratings for TV-7 Testers are equal to 65% of average new ratings.}ALL tubes will be ran through a Daniel Nelson calibrated HICKOK TV-7 B/U for a full mutual conductance test. This is a world class tester that is calibrated by the Hickok doctor. Its test results are dead on and you can buy with confidence. If you want to know what the exact Gm rating of the tube is please message me. My Return Policy: Will not accept returns for reasons such as ordered the wrong item, change mind, not what I thought It was, wrong color ordered, item ordered.