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Mazda 6P25 EL33 KT61 Pentode Valve Tube Made In England Used Tested

Ende: 01.12. 2023 18:18:05 am Freitag
  • Zustand: Gebraucht
  • Preis: 20.76 EUR FESTPREIS
  • Status: verkauft
  • Artikelnummer: 115900658515
  • Verkäufer: j-tek*leeds* (1119|99.4%)
  • Verkäufertyp: Gewerblich
  • Ort: Leeds Großbritannien
  • Versand nach: GB
  • Versandkosten: 3,45 EUR
  • bei ebay
  • Beschreibung

    Mazda 6P25 EL33 KT61 Pentode Valve Tube Made In England Used Tested. 3 available all tested as good on a Sencore valve tester. Make me an offer.

KT61 6P25 Marconi GEC USED Old Stock Valve Tube (J271)

Ende: 07.10. 2023 18:29:14 am Samstag
  • Zustand: Gebraucht
  • Preis: 34.42 EUR FESTPREIS
  • Status: verkauft
  • Artikelnummer: 404462493380
  • Verkäufer: fuller5321 (2713|100.0%)
  • Verkäufertyp: Gewerblich (mit Basis Shop)
  • Ort: Newmarket Großbritannien
  • Versand nach: GB
  • Versandkosten: 2,87 EUR
  • bei ebay
  • Beschreibung

    KT61 6P25 Marconi GEC USED Old Stock Valve Tube (J271). BK600 test 91 Hickok test 8000 mhos gm

KT61 VALVE - TUBE - MARCONI

Ende: 25.09. 2023 20:42:46 am Montag
  • Zustand: Gebraucht
  • Preis: 20.65 EUR FESTPREIS
  • Status: nicht verkauft
  • Artikelnummer: 155742779520
  • Verkäufer: arthur-daleys-lockup (406|100.0%)
  • Verkäufertyp: Privat
  • Ort: Bracknell Großbritannien
  • Versand nach: GB
  • Versandkosten: 0,0 EUR
  • bei ebay
  • Beschreibung

    KT61 VALVE - TUBE - MARCONI. Used but still in good condition Nice for a collection Postage will be free

KT61 Osram BVA Audio output valve. Black glass. AVO fully tested good.

Ende: 13.09. 2023 09:11:20 am Mittwoch
  • Zustand: Gebraucht
  • Preis: 17.32 EUR Auktion
  • Status: nicht verkauft
  • Artikelnummer: 115908423495
  • Anzahl Gebote: 0
  • Verkäufer: catboodle (368|100.0%)
  • Verkäufertyp: Privat
  • Ort: Maldon Großbritannien
  • Versand nach: GB
  • Versandkosten: 4,0 EUR
  • bei ebay
  • Beschreibung

    KT61 Osram BVA Made in England. Audio output valve. Fully AVO tested good, including for gas and inter-electrode shorts. AVO data for an average new valve is Ia= 40 mA gm= 10.5 mA/V. The test results for this valve are Ia=40mA gm=11.5mA/V So it tests like a new valve. It will be packed in a strong cardboard box with plenty of protection.

Pair of Osram KT61 Valves Tubes Used Tested

Ende: 11.09. 2023 19:40:00 am Montag
  • Zustand: Gebraucht
  • Preis: 26.56 EUR Auktion
  • Status: verkauft
  • Artikelnummer: 186059509635
  • Anzahl Gebote: 4
  • Verkäufer: dan198745 (37958|99.9%)
  • Verkäufertyp: Gewerblich
  • Ort: Billingshurst Großbritannien
  • Versand nach: Americas
  • Versandkosten: 5,0 EUR
  • bei ebay
  • Beschreibung

    OSRAMPair of KT61 Valves TubesFully Tested on AVO VCM 163100% Book Spec = Ia 40 - Gm 10.5These Valves Test1) Ia 30 - Gm 8.62) Ia 39 - Gm 10.5Used, Supplied in White Boxes

Osram GEC KT61 FM-6

Ende: 07.09. 2023 15:31:54 am Donnerstag
  • Zustand: Gebraucht
  • Preis: 17.28 EUR Auktion
  • Status: verkauft
  • Artikelnummer: 295910621531
  • Anzahl Gebote: 1
  • Verkäufer: jackigrac97 (1093|99.1%)
  • Verkäufertyp: Privat
  • Ort: Harleston Großbritannien
  • Versand nach: Worldwide
  • Versandkosten: 4,8 EUR
  • bei ebay
  • Beschreibung

    Excellent tube 7.5mA/V (100%=6.0) Taylor 45 tester Please watch my auctions as I have many more audio tubes to list together with rare early electronic equipment, radios and other equipment / Components I have acquired over the years. IMPORTANT INFORMATION I am selling vintage electronic items, these are by their nature are very old and fragile. Every care will be taken to ensure that they are packed well and reach you in the condition they leave me. POSTAGE:If winning bid is outside the UK please wait for my invoice before making payment. This will enable me to check and confirm the correct postage and include discounts for multiple purchases. The OVERSEAS rate is a guide only.Postage covers insurance up to the value of 41.00 for a lost item, it does not cover breakage of glass as this cannot be insured. I quote a standard cost for International postage and will refund any difference over exact cost minus packing materials.All overseas packages will be sent International signed for/tracked. Standard postage rate covers up to 5 small tubes. Also Items such as some capacitors and transformers may require surface shipping which can take 6-8 weeks. As this cant be tracked proof of despatch will be provided. DESPATCH:I always post within 10 working business days from payment. FEEDBACK:If for any reason you believe the item not to be as described in the auction or for that matter any other problems please contact me first before leaving bad star ratings and / or negative feedback. If you are not happy please lets sort things out amicably.

KT61 Osram BVA Audio output valve. Black glass. AVO fully tested good.

Ende: 06.09. 2023 09:10:47 am Mittwoch
  • Zustand: Gebraucht
  • Preis: 17.29 EUR Auktion
  • Status: nicht verkauft
  • Artikelnummer: 115902212026
  • Anzahl Gebote: 0
  • Verkäufer: catboodle (364|100.0%)
  • Verkäufertyp: Privat
  • Ort: Maldon Großbritannien
  • Versand nach: GB
  • Versandkosten: 4,0 EUR
  • bei ebay
  • Beschreibung

    KT61 Osram BVA Made in England. Audio output valve. Fully AVO tested good, including for gas and inter-electrode shorts. AVO data for an average new valve is Ia= 40 mA gm= 10.5 mA/V. The test results for this valve are Ia=40mA gm=11.5mA/V So it tests like a new valve. It will be packed in a strong cardboard box with plenty of protection.

Pair Of SE Output Transformers. 1940s British Manufacture, KT61, 6V6, EL41 Etc.

Ende: 04.09. 2023 17:34:20 am Montag
  • Zustand: Gebraucht
  • Preis: 34.62 EUR Auktion
  • Status: nicht verkauft
  • Artikelnummer: 295905277555
  • Anzahl Gebote: 0
  • Verkäufer: jackigrac97 (1092|100.0%)
  • Verkäufertyp: Privat
  • Ort: Harleston Großbritannien
  • Versand nach: Worldwide
  • Versandkosten: 8,5 EUR
  • bei ebay
  • Beschreibung

    Vintage SE output transformers, Pair. Test fine Please watch my auctions as I have many more audio tubes to list together with rare early electronic equipment, radios and other equipment / Components I have acquired over the years. IMPORTANT INFORMATION I am selling vintage electronic items, these are by their nature are very old and fragile. Every care will be taken to ensure that they are packed well and reach you in the condition they leave me. POSTAGE:If winning bid is outside the UK please wait for my invoice before making payment. This will enable me to check and confirm the correct postage and include discounts for multiple purchases. The OVERSEAS rate is a guide only.Postage covers insurance up to the value of 41.00 for a lost item, it does not cover breakage of glass as this cannot be insured. I quote a standard cost for International postage and will refund any difference over exact cost minus packing materials.All overseas packages will be sent International signed for/tracked. Standard postage rate covers up to 5 small tubes. Also Items such as some capacitors and transformers may require surface shipping which can take 6-8 weeks. As this cant be tracked proof of despatch will be provided. DESPATCH:I always post within 10 working business days from payment. FEEDBACK:If for any reason you believe the item not to be as described in the auction or for that matter any other problems please contact me first before leaving bad star ratings and / or negative feedback. If you are not happy please lets sort things out amicably.

KT61 Valve tested 76% ( 6AG6 6P25 CV1438 CV2938 EL33 N147 OM9 )

Ende: 31.08. 2023 18:29:18 am Donnerstag
  • Zustand: Gebraucht
  • Preis: 12.08 EUR FESTPREIS
  • Status: nicht verkauft
  • Artikelnummer: 204349804882
  • Verkäufer: buyitnowpostcards (942|100.0%)
  • Verkäufertyp: Privat
  • Ort: Helston Großbritannien
  • Versand nach: GB
  • Versandkosten: 0,0 EUR
  • bei ebay
  • Beschreibung

    Vintage Valve: KT61 Make: ref 933/64Tested: yes 76% New Old Stock: Used: YPhysical condition: used VALVE HAS A SLIGHT MECHANICAL RATTLEEquivalents for this valve if given will appear in title.FREE POSTWe will endeavour to describe valves as accurately as possible, if a valve is stated as Tested , these results are given in good faith, please keep in mind however that all vintage valves (and the boxes they may be sold in ) will be decades old, (including new old stock a.k.a. NOS) and should not be regarded as new, unless otherwise stated . Many thanks

RARE MATCHED PAIR 6V6G MULLARD TUBES KT61 CV509 BLACK GLASS ENGLAND test NOS

Ende: 24.08. 2023 14:00:51 am Donnerstag
  • Zustand: Gebraucht
  • Preis: 326.95 EUR FESTPREIS
  • Status: nicht verkauft
  • Artikelnummer: 235092177640
  • Verkäufer: littlepomponette (1475|100.0%)
  • Verkäufertyp: Gewerblich (mit Basis Shop)
  • Ort: Drummondville, Quebec Kanada
  • Versand nach: Worldwide
  • Versandkosten: 32,02 EUR
  • bei ebay
  • Beschreibung

    RARE MATCHED PAIR 6V6G MULLARD TUBES KT61 CV509 BLACK GLASS ENGLAND test NOS. Have black glass and bottom foil getter. I have tested the tube on my TV7, tube test 76 and 82 were 46 is good or 65%.Tubes will be packed with extreme care. I will pack this for war, I know how to make it smooth and secure.This unit will be professionally packaged secure travel, I know how to pack them, no worry.LOOK AND SUPERSIZE EACH PICTURES TO SEE THE CONDITION !!!Winner pay actual shipping cost plus packing fees, About 14$ for USA, 14$ for QC & ON, around 36$ WORLDWIDE via AIRMAIL.PICKUP IS ALLOWED BUT I SHIP ANYWHERE, WORLDWIDE... Please ask for rates. ITEM WILL BE PROFESSIONALY PACKED TO SURVIVE ON ANY TRIP!!! I charge real price paid, Im not in the business of making on money on shipping... I DO AWESOME BLASTPROOF PACKAGING... CHECK MY FEEDBACKS...

5X 6V6 G GT GTA Mullard Brimar RCA - KT61 VT 107 A Röhre Amplifier Tube Valvola

Ende: 20.08. 2023 14:55:48 am Sonntag
  • Zustand: Gebraucht
  • Preis: 99.0 EUR Auktion
  • Status: verkauft
  • Artikelnummer: 354977448303
  • Anzahl Gebote: 1
  • Verkäufer: vintagezeit (6|100.0%)
  • Verkäufertyp: Privat
  • Ort: Bischofsheim Deutschland
  • Versand nach: EuropeanUnion
  • Versandkosten: 0,0 EUR
  • bei ebay
  • Beschreibung

    5X 6V6 G GT GTA Mullard Brimar RCA - KT61 VT 107 A Röhre Amplifier Tube Valvola 5X 6V6 G GT GTA Mullard Brimar RCA - KT61 VT 107 A Rhre Amplifier Tube Valvola. Geprft mit Funke W19 Alle Rhren sind Teil einer sehr groen und schnen Sammlung von einem verstorbenen Sammler geerbt wurde.

Sextet of Philips Radiotron and Brimar KT61 Power Tetrodes USED tested

Ende: 16.08. 2023 06:28:05 am Mittwoch
  • Zustand: Als Ersatzteil / Defekt
  • Preis: 51.36 EUR Auktion
  • Status: nicht verkauft
  • Artikelnummer: 256171495427
  • Anzahl Gebote: 0
  • Verkäufer: johnmurt (1538|100.0%)
  • Verkäufertyp: Privat
  • Ort: Cooroy, QLD Australien
  • Versand nach: Worldwide
  • Versandkosten: 22,68 EUR
  • bei ebay
  • Beschreibung

    Sextet of Philips Radiotron and Brimar KT61 Power Tetrodes USED testedSextet of Philips Radiotron and Brimar KT61 Power Tetrodes USED tested Click images to enlarge Description Sextet of RADIOTRON and Brimar Made in England, KT61 Power tetrodes-USED A  set of 6 early 1950s Phillips Radiotron and 1 x Brimar, Made in England, KT61 Power Tetrodes in Used, and tested. The Philips Radiotron possibly at Phillips Mullard Blackburn plant these highly sought-after tetrodes are surplus to my needs and two only would make a great set of output tubes for such amplifiers as the LEAK TL 10 or similar. The first two tests strong and closely matched and would be my ideal choice, the other 4 x KT61 could be used as back-up only,  the Brimar KT61  although test strong, 78mA, I wouldnt use it. So in summary out of the 6 KT61s offered, I would only use Tubes 1 and 2, the other 4 for display purposes.  Have been tested on my AVO for leakage, Emission and Mutual Conductance with the following results. Va=250V, VS=250V, Vg=-4.4, Vf-6.3V Tube 1) Ip= 50mA, Gm=11.2, Tube 2) Ip=44mA, Gm= 10.8mA/V, Tube 3) Brimar Ip==78mA, Gm= 7.0mA/V and Tube 4) Ip= 25mA, gm=5.2mA/V, Tube 5 ) Ip=20Ma, gm=3.8ma/V Tube 6) Ip=18mA, gm=3.8mA/V. .A new tube should indicate Ip=40mA, gm=10.5mA. Will ship anywhere in the world at buyers expense. Please check out my other Auctions for rare vintage valves. Pictures sell! Auctiva offers Free Image Hosting and Editing.300+ Listing Templates! Auctiva gets you noticed! Attention Sellers - Get Templates Image Hosting, Scheduling at Auctiva.com. Track Page Views WithAuctivas Counter

5X 6V6 G GT GTA Mullard Brimar RCA - KT61 VT 107 A Röhre Amplifier Tube Valvola

Ende: 13.08. 2023 14:55:01 am Sonntag
  • Zustand: Gebraucht
  • Preis: 99.0 EUR Auktion
  • Status: nicht verkauft
  • Artikelnummer: 354963647591
  • Anzahl Gebote: 0
  • Verkäufer: vintagezeit (5|100.0%)
  • Verkäufertyp: Privat
  • Ort: Bischofsheim Deutschland
  • Versand nach: Worldwide
  • Versandkosten: 16,0 EUR
  • bei ebay
  • Beschreibung

    5X 6V6 G GT GTA Mullard Brimar RCA - KT61 VT 107 A Röhre Amplifier Tube Valvola 5X 6V6 G GT GTA Mullard Brimar RCA - KT61 VT 107 A Rhre Amplifier Tube Valvola. Geprft mit Funke W19 Alle Rhren sind Teil einer sehr groen und schnen Sammlung von einem verstorbenen Sammler geerbt wurde.

KT61 VALVE - TUBE - MARCONI

Ende: 17.07. 2023 17:32:49 am Montag
  • Zustand: Gebraucht
  • Preis: 29.13 EUR FESTPREIS
  • Status: nicht verkauft
  • Artikelnummer: 155618107402
  • Verkäufer: arthur-daleys-lockup (337|100.0%)
  • Verkäufertyp: Privat
  • Ort: Bracknell Großbritannien
  • Versand nach: GB
  • Versandkosten: 0,0 EUR
  • bei ebay
  • Beschreibung

    KT61 VALVE - TUBE - MARCONI. Used but still in good condition Nice for a collection Postage will be free

Sextet of Philips Radiotron and Brimar KT61 Power Tetrodes USED tested

Ende: 16.07. 2023 05:32:50 am Sonntag
  • Zustand: Als Ersatzteil / Defekt
  • Preis: 59.24 EUR Auktion
  • Status: nicht verkauft
  • Artikelnummer: 266325235224
  • Anzahl Gebote: 0
  • Verkäufer: johnmurt (1534|100.0%)
  • Verkäufertyp: Privat
  • Ort: Cooroy, QLD Australien
  • Versand nach: Worldwide
  • Versandkosten: 22,99 EUR
  • bei ebay
  • Beschreibung

    Sextet of Philips Radiotron and Brimar KT61 Power Tetrodes USED tested Click images to enlarge Description Sextet of RADIOTRON and Brimar Made in England, KT61 Power tetrodes-USED A  set of 6 early 1950s Phillips Radiotron and 1 x Brimar, Made in England, KT61 Power Tetrodes in Used, and tested. The Philips Radiotron possibly at Phillips Mullard Blackburn plant these highly sought-after tetrodes are surplus to my needs and two only would make a great set of output tubes for such amplifiers as the LEAK TL 10 or similar. The first two tests strong and closely matched and would be my ideal choice, the other 4 x KT61 could be used as back-up only,  the Brimar KT61  although test strong, 78mA, I wouldnt use it. So in summary out of the 6 KT61s offered, I would only use Tubes 1 and 2, the other 4 for display purposes.  Have been tested on my AVO for leakage, Emission and Mutual Conductance with the following results. Va=250V, VS=250V, Vg=-4.4, Vf-6.3V Tube 1) Ip= 50mA, Gm=11.2, Tube 2) Ip=44mA, Gm= 10.8mA/V, Tube 3) Brimar Ip==78mA, Gm= 7.0mA/V and Tube 4) Ip= 25mA, gm=5.2mA/V, Tube 5 ) Ip=20Ma, gm=3.8ma/V Tube 6) Ip=18mA, gm=3.8mA/V. .A new tube should indicate Ip=40mA, gm=10.5mA. Will ship anywhere in the world at buyers expense. Please check out my other Auctions for rare vintage valves. Pictures sell! Auctiva offers Free Image Hosting and Editing.300+ Listing Templates! Auctiva gets you noticed! Attention Sellers - Get Templates Image Hosting, Scheduling at Auctiva.com. Track Page Views WithAuctivas Counter

TUBE " OSRAM KT61 " TESTED.

Ende: 10.07. 2023 15:47:37 am Montag
  • Zustand: Gebraucht
  • Preis: 15.92 EUR Auktion
  • Status: verkauft
  • Artikelnummer: 256129736006
  • Anzahl Gebote: 3
  • Verkäufer: german-tubes (8078|99.7%)
  • Verkäufertyp: Gewerblich (mit Basis Shop)
  • Ort: Battiest, Oklahoma USA
  • Versand nach: Worldwide
  • Versandkosten: 13,75 EUR
  • bei ebay
  • Beschreibung

    Tube Osram KT61 with good Values. The items are shipped with German Post. 369Z

TUBE " MARCONI KT61 " TESTED

Ende: 10.07. 2023 15:46:38 am Montag
  • Zustand: Gebraucht
  • Preis: 13.19 EUR Auktion
  • Status: verkauft
  • Artikelnummer: 266322306232
  • Anzahl Gebote: 4
  • Verkäufer: german-tubes (8078|99.7%)
  • Verkäufertyp: Gewerblich (mit Basis Shop)
  • Ort: Battiest, Oklahoma USA
  • Versand nach: Worldwide
  • Versandkosten: 13,75 EUR
  • bei ebay
  • Beschreibung

    Tube Marconi KT61 with good Values. You can not see the Company on the Glas. I think the Tube is from Marconi. The items are shipped with German Post. 370Z

4 pieces KT61 Marconi GEC A B C D USED Old Stock Valve Tube JUN23

Ende: 10.07. 2023 12:17:10 am Montag
  • Zustand: Gebraucht
  • Preis: 163.05 EUR FESTPREIS
  • Status: verkauft
  • Artikelnummer: 374803787402
  • Verkäufer: jmg744 (28167|99.8%)
  • Verkäufertyp: Gewerblich
  • Ort: Billingshurst Großbritannien
  • Versand nach: Worldwide
  • Versandkosten: 24,01 EUR
  • bei ebay
  • Beschreibung

    1 piece KT61 Marconi GECUsed Old Stock Valve /Tube Fully Tested Book Value: IA: 40 GM: 10.5 ± 20% Test results This Valve IA: 41 GM: 10 As PhotoPurchasing one or more item from this listing, please choose the Tracked or Signed option. You will get the correct postage without waiting for me to combinePurchasing from This Listing + another Listings in my eBay shop?I will combine postage regardless of what eBay says.Please purchase all the items required (press buy it now confirm and pay button). You have purchased the items Please do nothing else. Do NOT press Pay, please, do NOT go to eBay Pay Now tab and pay. Please do NOT do a checkout saying payment by other method as eBay will not allow me to change the postage if you do so.. Please leave and I will adjust the postage.Yes, you can confirm purchase without paying as I do not require instant payment. All parcels with value of GBP20 and over MUST be tracked UK All parcels worldwide MUST be tracked

KT61 GEC C USED Old Stock Valve Tube JUN23

Ende: 10.07. 2023 08:30:08 am Montag
  • Zustand: Gebraucht
  • Preis: 40.56 EUR FESTPREIS
  • Status: nicht verkauft
  • Artikelnummer: 394681228926
  • Verkäufer: jmg744 (28146|99.8%)
  • Verkäufertyp: Gewerblich
  • Ort: Billingshurst Großbritannien
  • Versand nach: Worldwide
  • Versandkosten: 6,0 EUR
  • bei ebay
  • Beschreibung

    1 piece KT61 GECUsed Old Stock Valve /Tube Fully Tested Book Value: IA: 40 GM: 10.5 ± 20% Test results This Valve IA: 41 GM: 10.7 As PhotoPurchasing one or more item from this listing, please choose the Tracked or Signed option. You will get the correct postage without waiting for me to combinePurchasing from This Listing + another Listings in my eBay shop?I will combine postage regardless of what eBay says.Please purchase all the items required (press buy it now confirm and pay button). You have purchased the items Please do nothing else. Do NOT press Pay, please, do NOT go to eBay Pay Now tab and pay. Please do NOT do a checkout saying payment by other method as eBay will not allow me to change the postage if you do so.. Please leave and I will adjust the postage.Yes, you can confirm purchase without paying as I do not require instant payment. All parcels with value of GBP20 and over MUST be tracked UK All parcels worldwide MUST be tracked

KT61 GEC D USED Old Stock Valve Tube JUN23

Ende: 10.07. 2023 08:30:07 am Montag
  • Zustand: Gebraucht
  • Preis: 40.56 EUR FESTPREIS
  • Status: nicht verkauft
  • Artikelnummer: 374757698009
  • Verkäufer: jmg744 (28146|99.8%)
  • Verkäufertyp: Gewerblich
  • Ort: Billingshurst Großbritannien
  • Versand nach: Worldwide
  • Versandkosten: 6,0 EUR
  • bei ebay
  • Beschreibung

    1 piece KT61 GECUsed Old Stock Valve /Tube Fully Tested Book Value: IA: 40 GM: 10.5 ± 20% Test results This Valve IA: 52 GM: 11.7 As PhotoPurchasing one or more item from this listing, please choose the Tracked or Signed option. You will get the correct postage without waiting for me to combinePurchasing from This Listing + another Listings in my eBay shop?I will combine postage regardless of what eBay says.Please purchase all the items required (press buy it now confirm and pay button). You have purchased the items Please do nothing else. Do NOT press Pay, please, do NOT go to eBay Pay Now tab and pay. Please do NOT do a checkout saying payment by other method as eBay will not allow me to change the postage if you do so.. Please leave and I will adjust the postage.Yes, you can confirm purchase without paying as I do not require instant payment. All parcels with value of GBP20 and over MUST be tracked UK All parcels worldwide MUST be tracked

KT61 GEC B USED Old Stock Valve Tube JUN23

Ende: 10.07. 2023 08:30:07 am Montag
  • Zustand: Gebraucht
  • Preis: 40.56 EUR FESTPREIS
  • Status: nicht verkauft
  • Artikelnummer: 394681227424
  • Verkäufer: jmg744 (28146|99.8%)
  • Verkäufertyp: Gewerblich
  • Ort: Billingshurst Großbritannien
  • Versand nach: Worldwide
  • Versandkosten: 6,0 EUR
  • bei ebay
  • Beschreibung

    1 piece KT61 GECUsed Old Stock Valve /Tube Fully Tested Book Value: IA: 40 GM: 10.5 ± 20% Test results This Valve IA: 47 GM: 10.8 As PhotoPurchasing one or more item from this listing, please choose the Tracked or Signed option. You will get the correct postage without waiting for me to combinePurchasing from This Listing + another Listings in my eBay shop?I will combine postage regardless of what eBay says.Please purchase all the items required (press buy it now confirm and pay button). You have purchased the items Please do nothing else. Do NOT press Pay, please, do NOT go to eBay Pay Now tab and pay. Please do NOT do a checkout saying payment by other method as eBay will not allow me to change the postage if you do so.. Please leave and I will adjust the postage.Yes, you can confirm purchase without paying as I do not require instant payment. All parcels with value of GBP20 and over MUST be tracked UK All parcels worldwide MUST be tracked

KT61 Marconi GEC A USED Old Stock Valve Tube JUN23

Ende: 10.07. 2023 08:30:07 am Montag
  • Zustand: Gebraucht
  • Preis: 40.56 EUR FESTPREIS
  • Status: nicht verkauft
  • Artikelnummer: 374757692101
  • Verkäufer: jmg744 (28146|99.8%)
  • Verkäufertyp: Gewerblich
  • Ort: Billingshurst Großbritannien
  • Versand nach: Worldwide
  • Versandkosten: 6,0 EUR
  • bei ebay
  • Beschreibung

    1 piece KT61 Marconi GECUsed Old Stock Valve /Tube Fully Tested Book Value: IA: 40 GM: 10.5 ± 20% Test results This Valve IA: 41 GM: 10 As PhotoPurchasing one or more item from this listing, please choose the Tracked or Signed option. You will get the correct postage without waiting for me to combinePurchasing from This Listing + another Listings in my eBay shop?I will combine postage regardless of what eBay says.Please purchase all the items required (press buy it now confirm and pay button). You have purchased the items Please do nothing else. Do NOT press Pay, please, do NOT go to eBay Pay Now tab and pay. Please do NOT do a checkout saying payment by other method as eBay will not allow me to change the postage if you do so.. Please leave and I will adjust the postage.Yes, you can confirm purchase without paying as I do not require instant payment. All parcels with value of GBP20 and over MUST be tracked UK All parcels worldwide MUST be tracked

Sextet of Philips Radiotron and Brimar KT61 Power Tetrodes USED tested

Ende: 05.07. 2023 06:44:29 am Mittwoch
  • Zustand: Als Ersatzteil / Defekt
  • Preis: 63.5 EUR Auktion
  • Status: nicht verkauft
  • Artikelnummer: 266311854038
  • Anzahl Gebote: 0
  • Verkäufer: johnmurt (1534|100.0%)
  • Verkäufertyp: Privat
  • Ort: Cooroy, QLD Australien
  • Versand nach: Worldwide
  • Versandkosten: 22,97 EUR
  • bei ebay
  • Beschreibung

    Sextet of Philips Radiotron and Brimar KT61 Power Tetrodes USED tested Click images to enlarge Description Sextet of RADIOTRON and Brimar Made in England, KT61 Power tetrodes-USED A  set of 6 early 1950s Phillips Radiotron and 1 x Brimar, Made in England, KT61 Power Tetrodes in Used, and tested. The Philips Radiotron possibly at Phillips Mullard Blackburn plant these highly sought-after tetrodes are surplus to my needs and two only would make a great set of output tubes for such amplifiers as the LEAK TL 10 or similar. The first two tests strong and closely matched and would be my ideal choice, the other 4 x KT61 could be used as back-up only,  the Brimar KT61  although test strong, 78mA, I wouldnt use it. So in summary out of the 6 KT61s offered, I would only use Tubes 1 and 2, the other 4 for display purposes.  Have been tested on my AVO for leakage, Emission and Mutual Conductance with the following results. Va=250V, VS=250V, Vg=-4.4, Vf-6.3V Tube 1) Ip= 50mA, Gm=11.2, Tube 2) Ip=44mA, Gm= 10.8mA/V, Tube 3) Brimar Ip==78mA, Gm= 7.0mA/V and Tube 4) Ip= 25mA, gm=5.2mA/V, Tube 5 ) Ip=20Ma, gm=3.8ma/V Tube 6) Ip=18mA, gm=3.8mA/V. .A new tube should indicate Ip=40mA, gm=10.5mA. Will ship anywhere in the world at buyers expense. Please check out my other Auctions for rare vintage valves. Pictures sell! Auctiva offers Free Image Hosting and Editing.300+ Listing Templates! Auctiva gets you noticed! Attention Sellers - Get Templates Image Hosting, Scheduling at Auctiva.com. Track Page Views WithAuctivas Counter

Mazda Ediswan 6P25 EL33 KT61 matched quartet 40mA+ tubes valves suit Leak TL10

Ende: 01.07. 2023 21:26:46 am Samstag
  • Zustand: Gebraucht
  • Preis: 82.31 EUR Auktion
  • Status: verkauft
  • Artikelnummer: 285347909705
  • Anzahl Gebote: 4
  • Verkäufer: vintagedad (281|100.0%)
  • Verkäufertyp: Privat
  • Ort: London Großbritannien
  • Versand nach: Worldwide
  • Versandkosten: 10,0 EUR
  • bei ebay
  • Beschreibung

    The Mazda Ediswan 6P25 are among the best pentode for audio sound. Semi coated to avoid radio frequencies they are very silent tubes! Best performance. They are equivalent of KT61 and EL33 therefore can be used on any Leak TL10 amplifier or any amplifier using KT61 or EL33Excellent sound by Mazda 6P25This quartet of Mazda 6P25 has been fully tested with AVO 1631) Mazda Ediswan 6P25 coated tested 40mA 2) Mazda Ediswan 6P25 coated tested 41mA 3) Mazda Ediswan 6P25 coated tested 40mA 4) Mazda Ediswan 6P25 coated tested 40mAGood value from 38mA Happy bidding Immediate payment required for this item! This is due to time-wasters who refuse to pay. If payment is not received within 24 hours I will sell it to second highest bidder without any further warning! Thanks I ship worldwide.UK GBP 8; Europe GBP 16; Asia: Hong Kong Taiwan China South Korea Japan GBP 20 USA GBP 20