ONE very rare PAIR Western Electric U.K./STC 4205E tennis ball tubes Letters imprinted on socket. No rattles, firm socket. STC, the European production arm of WE did produce this 1:1 proxy for WE 205 tubes for a very limited period of time Measures about NOS @55-56/37 in calibrated Hickok TV-7 B/U tester. Play-tested in WE 46B, WONDERFUL sound! You only buy what you see in pics. I dont guarantee that the tube will be testing at exactly the same values as I state in this auction and which I got from MY Hickock TV-7 tester (calibrated). Dont bid if you disagree with this!

ONE very rare Western Electric U.K./STC M4205E tennis ball tube Letters imprinted on socket. No rattles, firm socket. STC, the European production arm of WE did produce this 1:1 proxy for WE 205 tubes for a very limited period of time Measures very strong @50/37 in calibrated Hickok TV-7 B/U tester. Play-tested in SET 205D amp, sounds WONDERFUL! You only buy what you see in pics. I dont guarantee that the tube will be testing at exactly the same values as I state in this auction and which I got from MY Hickock TV-7 tester (calibrated). Dont bid if you disagree with this!

lot of 4 WESTERN ELECTRIC JW5755 OR 420A vacuum tubes TESTED ON MY HICKOK 539C TUBE TESTER min - 1550 TEST RESULTS1. 1700 / 20002. 1700/ 16003. 2000 / 23004. 1800 / 1900 all used. as is

2 Western Electric made but Raytheon branded Clear top 420A / JW 5755 Vacuum tubes! Please see the detailed pictures and info Please see shipping calculator for shipping costs, Item is located in Vancovuer BC and can be shipped with the USPS out of Washington state or Canada Post for Canadian buyers. items over $120 will not be shipped without tracking which can be pricey to some overseas locations. Please see below for details on shipping. You are bidding on a pair of Western Electric made Clear Top 420A / JW 5755 vacuum tubes. Tubes are made by Western Electric in the 1950s. Once tube is branded with the Raytheon logo and the other tubes logo has worn off. Tubes have been tested on a recently calibrated Hickok TV7 tube tester with a digital meter and test as follows: Tubes test as follows:Tube 1 : 38.0/36.7 Tube2 : 35.6/33.4 Mininum good value on a TV7 tester for an 420A tube is 25. The tubes test well as slightly used with lots of life left. Tubes are guaranteed to be in good working order within one week of delivery. If a tube ends up bad just send it back for a refund on the cost of the bad tube. Shipping costs both ways will not be reimbursed . Please only bid if you agree with these terms. See pictures for details. If you have any questions please email. I will ship worldwide.Buyer to pay all shipping costs including brokerage and taxes if any. Item is located in Canada but will be shipped with the USPS for USA buyers or Canada Post for Canadian buyers. For overseas buyers : Please email for options as sometimes Canada post is cheaper for overseas shipping with Surface post. Please wait for my invoice before paying to avoid any hassles. I do combine shipping to save you costs! See my other auctions for more vintage audio gear! Local pickup in Vancouver BC is also available. GOOD LUCK!!!!!!!

I have 1 Excellent very strong new in the box Western electric 420a tube

2 Western Electric made but Raytheon branded Clear top 420A / JW 5755 Vacuum tubes! Please see the detailed pictures and info Please see shipping calculator for shipping costs, Item is located in Vancovuer BC and can be shipped with the USPS out of Washington state or Canada Post for Canadian buyers. items over $120 will not be shipped without tracking which can be pricey to some overseas locations. Please see below for details on shipping. You are bidding on a pair of Western Electric made Clear Top 420A / JW 5755 vacuum tubes. Tubes are made by Western Electric in the 1950s. Once tube is branded with the Raytheon logo and the other tubes logo has worn off. Tubes have been tested on a recently calibrated Hickok TV7 tube tester with a digital meter and test as follows: Tubes test as follows:Tube 1 : 38.0/36.7 Tube2 : 35.6/33.4 Mininum good value on a TV7 tester for an 420A tube is 25. The tubes test well as slightly used with lots of life left. Tubes are guaranteed to be in good working order within one week of delivery. If a tube ends up bad just send it back for a refund on the cost of the bad tube. Shipping costs both ways will not be reimbursed . Please only bid if you agree with these terms. See pictures for details. If you have any questions please email. I will ship worldwide.Buyer to pay all shipping costs including brokerage and taxes if any. Item is located in Canada but will be shipped with the USPS for USA buyers or Canada Post for Canadian buyers. For overseas buyers : Please email for options as sometimes Canada post is cheaper for overseas shipping with Surface post. Please wait for my invoice before paying to avoid any hassles. I do combine shipping to save you costs! See my other auctions for more vintage audio gear! Local pickup in Vancouver BC is also available. GOOD LUCK!!!!!!!

FOR SALE; ONE STRONG TESTING WESTERN ELECTRIC 5755 420A GRAY BOX PLATE TUBE. THIS TUBE WAS TESTED ON MY TV-7 D/U TESTER THAT WAS CALIBRATED BY DAN NELSON.THE TV-7/DU MINIMUM RECOMMENDED VALUE FOR THIS TUBE IS 25/25 @ 650/650 micromhos. THIS TUBE TESTED 47/45 @ 1175/1125 micromhos PLEASE READ;DOMESTICBUYERS/INTERNATIONAL BUYERS, IF YOU WANT YOUR PACKAGE INSURED PLEASE ADVISE AND WAIT FOR AN INVOICE. I USUALLY SHIP 1 to 2 BUSINESS DAYS AFTER PAYMENT. Read my feedback! I pack and ship to you, the way I would want you to pack and ship to me. I strive to ensure your entire buying experience rates 5 stars.Questions?? Please contact me BEFORE bidding! *The pictures are a major part of the description. *Payment to be received within 2 days of the auction.*All tube test results are guaranteed to be accurate however no warranty is expressed or implied as to how tubes will perform in any audio application.

FOR SALE; ONE WESTERN ELECTRIC 5755 420A GRAY BOX PLATE TUBE. TUBE CODE, 439 THIS TUBE WAS TESTED ON MY TV-7 D/U TESTER THAT WAS CALIBRATED BY DAN NELSON.THE TV-7/DU MINIMUM RECOMMENDED VALUE FOR THIS TUBE IS 25/25 @ 650/650 micromhos. THIS TUBE TESTED 35/35 @ 875/875 micromhos PLEASE READ;DOMESTICBUYERS/INTERNATIONAL BUYERS, IF YOU WANT YOUR PACKAGE INSURED PLEASE ADVISE AND WAIT FOR AN INVOICE. I USUALLY SHIP 1 to 2 BUSINESS DAYS AFTER PAYMENT. Read my feedback! I pack and ship to you, the way I would want you to pack and ship to me. I strive to ensure your entire buying experience rates 5 stars.Questions?? Please contact me BEFORE bidding! *The pictures are a major part of the description. *Payment to be received within 2 days of the auction.*All tube test results are guaranteed to be accurate however no warranty is expressed or implied as to how tubes will perform in any audio application.

2 Western Electric made but Raytheon branded Clear top 420A / JW 5755 Vacuum tubes! Please see the detailed pictures and info Please see shipping calculator for shipping costs, Item is located in Vancovuer BC and can be shipped with the USPS out of Washington state or Canada Post for Canadian buyers. items over $120 will not be shipped without tracking which can be pricey to some overseas locations. Please see below for details on shipping. You are bidding on a pair of Western Electric made Clear Top 420A / JW 5755 vacuum tubes. Tubes are made by Western Electric in the 1950s. Once tube is branded with the Raytheon logo and the other tubes logo has worn off. Tubes have been tested on a recently calibrated Hickok TV7 tube tester with a digital meter and test as follows: Tubes test as follows:Tube 1 : 38.0/36.7 Tube2 : 35.6/33.4 Mininum good value on a TV7 tester for an 420A tube is 25. The tubes test well as slightly used with lots of life left. Tubes are guaranteed to be in good working order within one week of delivery. If a tube ends up bad just send it back for a refund on the cost of the bad tube. Shipping costs both ways will not be reimbursed . Please only bid if you agree with these terms. See pictures for details. If you have any questions please email. I will ship worldwide.Buyer to pay all shipping costs including brokerage and taxes if any. Item is located in Canada but will be shipped with the USPS for USA buyers or Canada Post for Canadian buyers. For overseas buyers : Please email for options as sometimes Canada post is cheaper for overseas shipping with Surface post. Please wait for my invoice before paying to avoid any hassles. I do combine shipping to save you costs! See my other auctions for more vintage audio gear! Local pickup in Vancouver BC is also available. GOOD LUCK!!!!!!!

This is a Western Electric 420A JW 5755 clear top getter less. This was part of a lot of tubes that all the boxes suffered from dampness and were falling apart. So I am selling them as open box but they are NOS. They have been fully tested using a TV7D/U which has been refurbished and calibrated. Tested as 40-40/25. I do not have plate current numbers but will retest on a Hickok 539C which will provide more information. As can be seen the tube is in excellent physical condition as well as electrical condition. No shorts, No leakage. No cracks around pins and no corrossion on pins. Shipping will be USPS first class and well packed in a small box. Thanks for looking. Note: I tested this tube on the Hickok 539C as 5755 and it tested as follows (Gm micro mhos and current in Ma. ) 1600-1625/975 at 1.8ma for each section. No shorts or leakage detected.

ONE WESTERN ELECTRIC 420A OR JW5755 vacuum tubeTested on my Hickok 539c tube tester min: 1550results: 2000 / 2000 USEDAS IS

I have 1 Excellent strong new in the box premium western electric clear top 5755 tube.

FOR SALE; ONE WESTERN ELECTRIC 5755 420A TUBE. THIS TUBE HAS GRAY BOX PLATES AND ANGLED SQUARE GETTER. TUBE CODE, 6026 THIS TUBE WAS TESTED ON MY TV-7 D/U TESTER THAT WAS REFURBISHED AND CALIBRATED BY DAN NELSON WERE 25/25 @ 625/625 micromhos IS MINIMUM (65% OF THE TUBES LIFE). THIS TUBE TESTED 40/39 @ 1000/975 micromhos INTERNATIONAL BUYERS ARE WELCOME. I USUALLY SHIP THE NEXT BUSINESS DAY AFTER PAYMENT. PLEASE CONTACT ME BEFORE LEAVING ANYTHING BUT GOOD FEEDBACK.

FOR SALE; ONE WESTERN ELECTRIC 5755 420A GRAY BOE PLATS TUBE. TUBE CODE, 439 THIS TUBE WAS TESTED ON MY TV-7 D/U TESTER THAT WAS REFURBISHED AND CALIBRATED BY DAN NELSON WERE 25/25 @ 625/625 micromhos IS MINIMUM (65% OF THE TUBES LIFE). THIS TUBE TESTED 43/42 @ 1075/1050 micromhos INTERNATIONAL BUYERS ARE WELCOME. I USUALLY SHIP THE NEXT BUSINESS DAY AFTER PAYMENT. PLEASE CONTACT ME BEFORE LEAVING ANYTHING BUT GOOD FEEDBACK.

ONE WESTERN ELECTRIC 420A OR JW5755 vacuum tubeTested on my Hickok 539c tube tester min: 1550results: 2000 / 2000 USEDAS IS

ONE (1) TUBE, Calibrated TV7 Tested Western Electric 420A ( 5755 ) Dated 1 39 USA Tube Condition: Lightly Used, Dan Nelson Calibrated (11/11/2021) TV7 Tested Good with Balanced Plates, Clean Pins Plug in and Play Condition. - Made in the USA by Western Electric model 420A / 5755- Production date 1961 1 39- Model 5755 420A Dual/Twin/Double Triode- Two Thick Boxed Smooth Dark Gray Plates- Clear Top We have included in the pics both the Western Electric 420A / 5755 data sheet specs and the Raytheon CK5755data sheet specs for your evaluation. TV7 Data states Minimum Good meter reading of 25/25 = 625/625 uMhos Gm when tested at Eb= 150V Plate Supply Voltage at Heater/Filament 6.3v and Ec = -0.6 volts. All versions of TV7s test at a maximum of 150V~/-- Plate Volts.A 150v Plate supply voltage is not given in both spec sheets only 110V and 180V and these differ greatly for Gm Transconductance and Plate Current dissipation in mA for a factory NOS tube. Bogey Spec : Western Electric Factory NOS 420A / 5755 and the Raytheon 5755 tube running in CLASS A circuit, Gives Two Gm/mA specs given two different Plate supply voltages (110Volts and 180Volts)1.) Heater supply Voltage 6.3v connected in parralell test at 110V Plate Volt Supply = 20/20 = 500/500 uMhos Gm at 0.15/0.15 milliampere.2.) Heater supply Voltage 6.3v connected in parralell test at 180V Plate Volt Supply = 60/60 = 1,500/1,500 uMhos (Gm) at 2.2/2.2 milliampere (mA).3.) Speculation : when tested at 150V Plate supply voltage the Tubes Gm Transconductance should be 44/44 = 1,100/1,100 uMhos at 1.7/1.7mA Digital TV7 Test Results : NO SHORTS, NO LEAKAGE, NO Gas, NO Micro phonics Detected -test results are seen in the pics(Digital Meter Reading, uMhos (?? ) Transconductance (Gm), Anode Plate Current (mA) Tube : (WECO 5755 420A) Plate 1: 38.6 (min=25) = 965.0 uMhos (Gm) at 1.8 mA plate current Plate 2: 38.8 (min=25) = 970.0 uMhos (Gm) at 1.6 mA plate current Please preview in detail all pics Our Test set : Recent Dan Nelson (11/11/2021) Restored, Enhanced, Upgraded & Calibrated with Digital Meter reading Transconductance (Gm) and Anode Plate Current Dissipation (mA). We use Nolan Lees last published TV7 conversationspreadsheet to transpose TV7s numerical meter readings (0-120) into actual uMhos Gm transconductance #s based upon the Selector switch settings( A-E). WE SHIP FAST, WE COMBINE SHIPPING ON MULTIPLE PURCHASES, WE CAREFULLY TEST EVEN NOS/NIB VACUUM TUBES TO ENSURE THEY TEST NEW GIVENTHE ORGINAL MANUFACTURERS DATA SHEET. WE PACK WELL FOR SAFE SHIPPING, Many years of shipping Experience with FRAGILE Vacuum Tubesand Vintage Electronics. WE Usually SHIP Within 1 Day,Orders received by 1pm EST usually ship SAME DAY as Immediate Purchase. Monday-Saturday. Our standard service for ALL 50 States is USPS 1st Class, 2nd option is USPS Priority Mail small box. International Shipping Only via eBay Economy Small Package Service space available container air-freight (10 day to 6weeksdelivery depending upon region/country).Some country restrictions apply. If you country is in the drop down list under the shipping tab then WE SHIP!Please note : Any customs duties, taxes or additional fees your country my apply are the responsibility of the buyer.

This is a Western Electric 420A JW 5755 clear top getter less. This was part of a lot of tubes that all the boxes suffered from dampness and were falling apart. So I am selling them as open box but they are NOS. They have been fully tested using a TV7D/U which has been refurbished and calibrated. Tested as 40-40/25. I do not have plate current numbers but will retest on a Hickok 539C which will provide more information. As can be seen the tube is in excellent physical condition as well as electrical condition. No shorts, No leakage. No cracks around pins and no corrossion on pins. Shipping will be USPS first class and well packed in a small box. Thanks for looking. Note: I tested this tube on the Hickok 539C as 5755 and it tested as follows (Gm micro mhos and current in Ma. ) 1600-1625/975 at 1.8ma for each section. No shorts or leakage detected.

This is a Western Electric 420A JW 5755 clear top getter less. This was part of a lot of tubes that all the boxes suffered from dampness and were falling apart. So I am selling them as open box but they are NOS. They have been fully tested using a TV7D/U which has been refurbished and calibrated. Tested as 40-40/25. I do not have plate current numbers but will retest on a Hickok 539C which will provide more information. As can be seen the tube is in excellent physical condition as well as electrical condition. No shorts, No leakage. No cracks around pins and no corrossion on pins. Shipping will be USPS first class and well packed in a small box. Thanks for looking. Note: I tested this tube on the Hickok 539C as 5755 and it tested as follows (Gm micro mhos and current in Ma. ) 1600-1625/975 at 1.8ma for each section. No shorts or leakage detected.

I have 1 Excellent New in the box Western electric 5755 tube