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Matched pair AD1 Tungsram

End: 10.11. 2024 14:07:57 on Sunday
  • Condition: Used
  • Price: 200.0 EUR Auktion
  • Status: 6T 20:6:46
  • Item number: 205081269405
  • Bids: 0
  • Seller: (|%)
  • Seller information:
  • Item location: Berlin,Deutschland Deutschland
  • Ships to:
  • Shipping: 7,0 EUR
  • on EBAY

2x matched Siemens Ed cylinder glass (AD1 as Post tube version) perfect condion

End: 10.11. 2024 14:03:37 on Sunday
  • Condition: Used
  • Price: 1000.0 EUR Auktion
  • Status: 6T 20:2:26
  • Item number: 205081259016
  • Bids: 0
  • Seller: (|%)
  • Seller information:
  • Item location: Berlin,Deutschland Deutschland
  • Ships to:
  • Shipping: 7,0 EUR
  • on EBAY

TDK AD1 90 Japan Vintage cassette Type1 Audio blank tape new sealed *rare

End: 03.11. 2024 17:57:21 on Sunday
  • Condition: New
  • Price: 8.54 EUR Auktion
  • Status: unsold
  • Item number: 335640182245
  • Bids: 0
  • Seller: adisr-79 (199|100.0%)
  • Seller information: non commercial
  • Item location: Bangkok Thailand
  • Ships to: Worldwide
  • Shipping: 14,0 EUR
  • on EBAY

TDK AD1 90 Japan Vintage cassette Type1 Audio blank tape new sealed *rare

End: 23.10. 2024 20:26:25 on Wednesday
  • Condition: New
  • Price: 8.26 EUR Auktion
  • Status: unsold
  • Item number: 335622450697
  • Bids: 0
  • Seller: adisr-79 (197|100.0%)
  • Seller information: non commercial
  • Item location: Bangkok Thailand
  • Ships to: Worldwide
  • Shipping: 14,0 EUR
  • on EBAY

2x Röhre AD1 VALVO neu OVP monoplate ( EbIII / Ed )

End: 23.10. 2024 18:51:44 on Wednesday
  • Condition: New
  • Price: 1999.0 EUR Auktion
  • Status: unsold
  • Item number: 226398410371
  • Bids: 0
  • Seller: nord-tubes-24 (40|97.6%)
  • Seller information: non commercial
  • Item location: Hüttblek Deutschland
  • Ships to: Europe
  • Shipping: 6,75 EUR
  • on EBAY

Tungsram AD1 Röhre NOS Triode strong 58mA tested Röhrenverstärker

End: 20.10. 2024 16:53:01 on Sunday
  • Condition: Used
  • Price: 201.0 EUR Auktion
  • Status: sold
  • Item number: 356144808604
  • Bids: 13
  • Seller: deinradio (12884|99.9%)
  • Seller information: Commercial
  • Item location: Stuttgart Deutschland
  • Ships to: Worldwide
  • Shipping: 5,0 EUR
  • on EBAY

TDK AD1 90 Japan Vintage cassette Type1 Audio blank tape new sealed *rare

End: 15.10. 2024 16:21:38 on Tuesday
  • Condition: New
  • Price: 8.32 EUR Auktion
  • Status: unsold
  • Item number: 335609688134
  • Bids: 0
  • Seller: adisr-79 (194|100.0%)
  • Seller information: non commercial
  • Item location: Bangkok Thailand
  • Ships to: Worldwide
  • Shipping: 14,0 EUR
  • on EBAY

2x Röhre AD1 VALVO neu OVP monoplate ( EbIII / Ed )

End: 13.10. 2024 17:30:01 on Sunday
  • Condition: New
  • Price: 1999.0 EUR Auktion
  • Status: unsold
  • Item number: 226381550334
  • Bids: 0
  • Seller: nord-tubes-24 (36|97.4%)
  • Seller information: non commercial
  • Item location: Hüttblek Deutschland
  • Ships to: Europe
  • Shipping: 6,75 EUR
  • on EBAY

AD1 (2A3) Tunsgram Vacuum Tube Triode Tested

End: 10.10. 2024 09:50:44 on Thursday
  • Condition: Used
  • Price: 170.0 EUR FESTPREIS
  • Status: sold
  • Item number: 395264367624
  • Seller: vintagetube (448|99.5%)
  • Seller information: Commercial (with base shop)
  • Item location: Nürnberg Deutschland
  • Ships to: Worldwide
  • Shipping: 0,0 EUR
  • on EBAY

RFT AD1 Ed Röhre NOS OVP strong tested sehr selten Röhrenverstärker Tube

End: 06.10. 2024 17:52:01 on Sunday
  • Condition: New
  • Price: 402.0 EUR Auktion
  • Status: sold
  • Item number: 356105768327
  • Bids: 41
  • Seller: deinradio (12786|99.8%)
  • Seller information: Commercial
  • Item location: Stuttgart Deutschland
  • Ships to: Worldwide
  • Shipping: 5,0 EUR
  • on EBAY

2x Tungsram AD1 Röhre Rarität Triode top tested Röhrenverstärker Tube

End: 06.10. 2024 16:54:01 on Sunday
  • Condition: Used
  • Price: 269.0 EUR Auktion
  • Status: sold
  • Item number: 356095389239
  • Bids: 27
  • Seller: deinradio (12786|99.8%)
  • Seller information: Commercial
  • Item location: Stuttgart Deutschland
  • Ships to: Worldwide
  • Shipping: 5,0 EUR
  • on EBAY

Tungsram AD1 Röhre NOS OVP Triode strong 60mA tested Röhrenverstärker

End: 29.09. 2024 15:55:01 on Sunday
  • Condition: Used
  • Price: 251.0 EUR Auktion
  • Status: sold
  • Item number: 356074693842
  • Bids: 28
  • Seller: deinradio (12732|99.8%)
  • Seller information: Commercial
  • Item location: Stuttgart Deutschland
  • Ships to: Worldwide
  • Shipping: 5,0 EUR
  • on EBAY

Valvo AD1 Röhre Rarität strong tested 65mA like new Triode Röhrenverstärker

End: 28.01. 2024 17:25:01 on Sunday
  • Condition: Used
  • Price: 445.44 EUR Auktion
  • Status: sold
  • Item number: 355391447091
  • Bids: 20
  • Seller: deinradio (9656|99.7%)
  • Seller information: Commercial
  • Item location: Berlin Deutschland
  • Ships to: Worldwide
  • Shipping: 5,0 EUR
  • on EBAY
  • Description

    Valvo AD1 Röhre Rarität strong tested 65mA like new Triode RöhrenverstärkerWir haben deinradio! Senden Sie uns eine Nachricht Unser Shop Verkäuferprofil Bewertungen Shop speichern Kontakt Valvo AD1 Röhre Rarität strong tested 65mA like new Triode Röhrenverstärker Bitte entnehmen Sie den genauen Zustand und Lieferumfang den Bildern.Die Röhre wurde auf einem Funke W19 als sehr gut geprüft. Die Prüfergebnisse der Prüfung in mA:65 Wir bieten eine Vielzahl an alten Bastel -und Sammelobjekten an.Bitte beachten Sie, dass aufgrund des Alters keine Garantien auf die technischen Funktionen gegeben werden können.The parts are very old, we dont give any guarantee on the technical function. Zahlung Versand Kombiversand nur bei Artikeln möglich, die am gleichen Tag gekauft werden. (aus einer Auktionsrunde) DIe angepasste Rechnung erhalten Sie dann nach Auktionsende. Aufwendiger Versand (klimaneutral) mit DHL Premium in 2-welliger Kartonage und aufwendiger Polsterung! Versand größtenteils plastikfrei, 80 Prozent des Versandmaterial aus recyceltem Altpapier bzw. Second-Hand Kartonagen. WORLDWIDE SHIPPING ON REQUEST! PLEASE ASK BEFORE YOU BUY! Links Unser Shop Verkäuferprofil Bewertungen Shop speichern Kontakt Newsletter Verpassen Sie keine Angebote mehr! Wir informieren Sie über Angebote und Aktionen bequem per E-Mail. Newsletter abonnieren Kontakt Senden Sie uns eine Nachricht

PAIR TUBES RS242 black Telefunken TFK matched curves with Sofia NOS AD1 WE

End: 18.12. 2023 15:55:04 on Monday
  • Condition: Used
  • Price: 900.0 EUR FESTPREIS
  • Status: unsold
  • Item number: 186141126041
  • Seller: brucknerhorn (211|100.0%)
  • Seller information: Commercial (with base shop)
  • Item location: Bologna Italien
  • Ships to: Worldwide
  • Shipping: 13,0 EUR
  • on EBAY
  • Description

    PAIR TUBES RS242 black Telefunken TFK matched curves with Sofia  NOS  AD1 WEIn the last century I bought a few thousand tubes and tested them with the computerized curve tracer Sofia by Audiomatica. The tubes I purchased were mostly direct heated triodes ( DHT ) and high transconductance noval. Over time I have kept only the most linear tubes and matched them. In the coming weeks a part of my collection will be on sale (among these DHTs such as UX201A, CX301A, 171A, 112A, CV1660, 3A/110A, AC/P4, 801A, 10Y, 801 RCA ceramic base, RE604 TFK globe, RE084, RE134, D3A Siemens, etc )If you need information on the interpretation of the curves or enlargements of specific areas, just ask.It should be noted that Sofias software makes an error when measuring direct heated tubes.The cathode reference point is lifted up by half of the heater voltage; so, for example, when the filament is fed at 4 volts, all curves are actually measured at 2 volts less than nominal. The curve you see at -40 volts is actually at -42 volts. The higher the voltage of the filament, the greater the difference (especially with the family of 10Y/VT25/VT62/801A etc with a 7.5 volt filament the error is 3.75 volts) You can read about it on the dedicated page in Sofia by Audiomatica on the Jac music website. Auction for one matched pair of RS242 black plate Telefunken NOS only tested Full emission, same construction The two tubes were manufactured in the january 1942 with the number 218001 and in the february 1942 with the number 218767 Both with the black plates; the grey plates were manufactured in the two last years war and generally, from my experience, have much less quality You see the curves of each triode and the third image with the curves overlapped For any infos and for combined shipping, please ask. For shipping outside Europe, please ask for better prices

Konvolut 2x Valvo Post Röhre Ed (~AD1) geprüft

End: 26.10. 2023 15:15:17 on Thursday
  • Condition: Used
  • Price: 800.0 EUR FESTPREIS
  • Status: 29T 22:39:55
  • Item number: 276067207549
  • Seller: (|%)
  • Seller information:
  • Item location: Bad Waldsee,Deutschland Deutschland
  • Ships to:
  • Shipping: 0,0 EUR
  • on EBAY
  • Description

    Konvolut 2x Valvo Post Röhre Ed (~AD1) geprüftKonvolut 2x Valvo Röhre Ed. Die Röhren stammen aus der Auflösung einer größeren Funker-Sammlung. Jeweils gebrauchter Zustand, bei beiden Röhren wurde der Sockel nachgeklebt. Durch lose Reste des alten Klebers darin klimpern die Röhren nun etwas. Zudem haben die Röhren jeweils im Glas des Sockelbereichs innen einen leicht milchigen Belag. Dies ist aber nicht zu verwechseln mit einem aufgelösten Getterspiegel, dieser befindet sich nämlich hier jeweils gegenüber. Ich denke der Belag kommt von der längeren Nutzung. Wenn man Bilder bei Google studiert, haben manche EDs diesen Belag, auch bei diversen AD1 kann man ihn etwas erkennen. Die Röhren wurden beide auf einem Funke W19 geprüft. Auch wenn die Werte nur im Bereich ? bis Anfang gut sind, scheint das für die ED normal zu sein. Siehe hierzu diverse EDs die hier eingestellt und auch verkauft wurden, alle wurden so um die 50mA gemessen. Beim Funke W19 beginnt gut bei 50mA, ? beginnt bei 36mA Die Messwerte: Röhre 1: (auf den Fotos links)Emission 48mASteuerwirkung (-2V) 43mAVacuumtest 38mA Röhre 2:Emission 51mASteuerwirkung 43mAVacuumtest 40mA Diese Werte, einschließlich Steuerwirkung und Vacuumtest decken sich auch mit einer Probeprüfung einer ungebrauchten Siemens Ed, die sich in meiner Sammlung befindet. Zur weiteren Beschreibung schauen Sie sich bitte die Bilder oben an. Zum genauen Betrachten können sie diese auch vergrößern. (Helle Stellen auf den Bildern sind nur Lichtreflexe) Wichtiges zu Ihrem Kauf: Sollte es zu irgendwelchen Problemen kommen, schreiben Sie mir bitte eine Nachricht, ich kümmere mich dann umgehend um eine Lösung. Wenn Sie Ihren Artikel erhalten haben, würde ich mich sehr über eine positive Bewertung freuen. Falls Sie zufrieden waren, geben Sie mir bitte auch 5 Sterne bei den detaillierten Bewertungen. BezahlungBitte der Kaufabwicklung via Ebay folgen Versandkosten nach Vertragsabschluß Bei Käufen aus Deutschland sende ich Ihnen nach Auktionsende keine gesonderte Zahlungsaufforderung, nutzen Sie bitte einfach die Kaufabwicklung über Ebay. Bei Käufen aus dem Ausland sende ich Ihnen innerhalb eines Tages eine Zahlungsaufforderung mit den jeweiligen Versandkosten via Ebay zu. Eine Barzahlung und Abholung der Ware ist möglich und erfolgt nach telefonischer bzw. schriftlicher Terminvereinbarung. Wird in der Artikelbeschreibung kostenloser Versand angegeben, werden Ihnen für den jeweiligen Artikel natürlich keine Versandkosten berechnet. Die Versendung erfolgt in der Regel über DHL bzw. der Deutschen Post

6B4G( AD1 ) Sylvania USA, tested. 1 Stück

End: 24.09. 2023 14:43:06 on Sunday
  • Condition: Used
  • Price: 39.0 EUR Auktion
  • Status: unsold
  • Item number: 295936228902
  • Bids: 0
  • Seller: eastpiont66x (132|100.0%)
  • Seller information: non commercial
  • Item location: Waldkirch Deutschland
  • Ships to: Worldwide
  • Shipping: 6,0 EUR
  • on EBAY
  • Description

    6B4G( AD1 ) Sylvania USA, tested. 1 StückAus alten Sammlungsbestand abzugeben.: 1 Stück Röhre :6B4G( AD1) USA, Sylvania. Geprüft. Value : 70 mAPrüfung ist nicht aktuell, daher als defekt angeboten. Optischer Zustand siehe Bilder, teil der Beschreibung. Aufgrund des Alters keine Garantie auf Funktion. Dies ist ein Privatverkauf, keine Rücknahme , keine Garantie .Irrtümer vorbehalten. Kosten für die Rücksendung trägt der Käufer.Mit Abgabe des Gebotes haben Sie die Bedingungen akzeptiert., From old collection stock to give away.:Used Tube: 6B4G ( AD1) Sylvania USA. Value: 70 mA.Tube is tested, but no updates. Sale as wrong. Optical condition see pictures, part of the description. Due to age no guarantee on function. This is a private sale, no return , no warranty . The buyer bears the return postageBy placing a bid you have accepted the conditions. No shipment to russia.

Görler NF44 Single Ended Tube Amplifier AD1 AZ11 AC2 Telefunken Untested

End: 06.09. 2023 16:04:05 on Wednesday
  • Condition: For parts or not working
  • Price: 61.0 EUR Auktion
  • Status: sold
  • Item number: 394847320091
  • Bids: 9
  • Seller: marciry-44 (68|95.5%)
  • Seller information: non commercial
  • Item location: sosnowiec Polen
  • Ships to: DE
  • Shipping: 40,0 EUR
  • on EBAY
  • Description

    Görler NF44 Single Ended Tube Amplifier AD1 AZ11 AC2 Telefunken UntestedNone of the components have been tested, the amplifier is sold as damaged.

TELEFUNKEN AD1 Tube - Special version EBIII Type - Neuberger Tested - NOS

End: 03.09. 2023 15:28:51 on Sunday
  • Condition: Used
  • Price: 670.29 EUR Auktion
  • Status: sold
  • Item number: 256198069377
  • Bids: 2
  • Seller: klassikx (1253|99.0%)
  • Seller information: Commercial (with base shop)
  • Item location: Aschheim Deutschland
  • Ships to: Worldwide
  • Shipping: 31,07 EUR
  • on EBAY
  • Description

    TELEFUNKEN AD1 Tubethis is the special EB III type version with cooling wings!perfect NOS with its original packaging - Neuberger TestedA perfect AD1 tube Made in Germany in NOS new old stock condition and still with its original box.This is the very early postwar special version EB III type feat. the cooling wings inside, and has AD1 stamped on the glass below the Telefunken logo.The tube has been professionally tested with a Neuberger tube tester - see photos with NOS test results.Please do not hesitate to contact me for any questions. ----------------------------------------------------------------------------------------------------------------------------------------------------------- I ship worldwide via Deutsche Post / DHL registered airmail packages providing a tracking number. All records will be professionally packed in special four-lax cardboard LP-mailers to avoid corner damage, bends or anything alike during shipment. Please contact me for any questions or special requests. - Save International Shipping Cost by combined shipping: => to EU countries: $19.90 USD via DHL Paket registered airmail package up to 5kg; $25.90 USD via DHL Paket registered airmail package up to 10kg => to Non-EU countries incl. North America, Asia, Australia ...: $79.90 USD via DHL Paket registered airmail package up to 10kg - Worldwide shipping rates by weight: => $9.90 USD via Deutsche Post registered letter airmail up to 500g (1LP depending on weight) .... note that depending on the LPs weight only lighter packaging material can be used => for 100% protection I recommend to ship up to 1kg using strongest packaging materials! => $16.90 USD via Deutsche Post registered letter airmail up to 1kg (2-3 LPs depending on weight) => $29.50 USD via Deutsche Post registered letter airmail up to 2kg (4-6 LPs depending on weight) => $57.90 USD via DHL Paket registered airmail package up to 5kg (15-20 LPs depending on weight) => $79.90 USD via DHL Paket registered airmail package up to 10kg (30-40 LPs depending on weight) Note that for box set LPs the higher weight of boxes and booklets must be taken into account: ... e.g. a 2LP box sets weight can be the same as 3 LPs. Heavy weight audiophile 180g or 200g pressings may also require higher shipping charges. - Postage within Germany: $9.00 USD via DHL Paket registered airmail package of 1-100 LPs. - For Deutsche Post additional insurance add $2.50 per 100,- USD in value.

PAIR TUBES RS242 black Telefunken TFK matched curves with Sofia NOS perfect AD1

End: 10.08. 2023 13:43:22 on Thursday
  • Condition: Used
  • Price: 990.0 EUR FESTPREIS
  • Status: unsold
  • Item number: 186012674843
  • Seller: brucknerhorn (116|100.0%)
  • Seller information: non commercial
  • Item location: Bologna Italien
  • Ships to: EuropeanUnion
  • Shipping: 13,0 EUR
  • on EBAY
  • Description

    In the last century I bought a few thousand tubes and tested them with the computerized curve tracer Sofia by Audiomatica. The tubes I purchased were mostly direct heated triodes ( DHT ) and high transconductance noval. Over time I have kept only the most linear tubes and matched them. In the coming weeks a part of my collection will be on sale (among these DHTs such as UX201A, CX301A, 171A, 112A, CV1660, 3A/110A, AC/P4, 801A, 10Y, 801 RCA ceramic base, RE604 TFK globe, RE084, RE134, D3A Siemens, etc )If you need information on the interpretation of the curves or enlargements of specific areas, just ask.It should be noted that Sofias software makes an error when measuring direct heated tubes.The cathode reference point is lifted up by half of the heater voltage; so, for example, when the filament is fed at 4 volts, all curves are actually measured at 2 volts less than nominal. The curve you see at -40 volts is actually at -42 volts. The higher the voltage of the filament, the greater the difference (especially with the family of 10Y/VT25/VT62/801A etc with a 7.5 volt filament the error is 3.75 volts) You can read about it on the dedicated page in Sofia by Audiomatica on the Jac music website. Auction for one matched pair of RS242 black plate Telefunken NOS only tested Full emission, same construction The two tubes were manufactured in the january 1942 with the number 218001 and in the february 1942 with the number 218767 Both with the black plates; the grey plates were manufactured in the two last years war and generally, from my experience, have much less quality You see the curves of each triode and the third image with the curves overlapped For any infos and for combined shipping, please ask. For shipping outside Europe, please ask for better prices

PAIR TUBES RE604 globe Telefunken TFK matched curves with Sofia NOS perfect AD1

End: 10.08. 2023 13:43:21 on Thursday
  • Condition: Used
  • Price: 1200.0 EUR FESTPREIS
  • Status: unsold
  • Item number: 185994356397
  • Seller: brucknerhorn (110|100.0%)
  • Seller information: non commercial
  • Item location: Bologna Italien
  • Ships to: EuropeanUnion
  • Shipping: 13,0 EUR
  • on EBAY
  • Description

    In the last century I bought a few thousand tubes and tested them with the computerized curve tracer Sofia by Audiomatica. The tubes I purchased were mostly direct heated triodes ( DHT ) and high transconductance noval. Over time I have kept only the most linear tubes and matched them. In the coming weeks a part of my collection will be on sale (among these DHTs such as UX201A, CX301A, 171A, 112A, CV1660, 3A/110A, AC/P4, 801A, 10Y, 801 RCA ceramic base, RE604 TFK globe, RE084, RE134, D3A Siemens, etc )If you need information on the interpretation of the curves or enlargements of specific areas, just ask.It should be noted that Sofias software makes an error when measuring direct heated tubes.The cathode reference point is lifted up by half of the heater voltage; so, for example, when the filament is fed at 4 volts, all curves are actually measured at 2 volts less than nominal. The curve you see at -40 volts is actually at -42 volts. The higher the voltage of the filament, the greater the difference (especially with the family of 10Y/VT25/VT62/801A etc with a 7.5 volt filament the error is 3.75 volts) You can read about it on the dedicated page in Sofia by Audiomatica on the Jac music website. Auction for one matched pair of RE604 globe Telefunken NOS only tested ( numbers no 30 and no 40) Full emission, same construction You see the curves of each triode and the third image with the curves overlapped For any infos and for combined shipping, please ask. For shipping outside Europe, please ask for better prices

6B4G( AD1 ) Sylvania USA, tested. 1 Stück

End: 24.07. 2023 17:20:16 on Monday
  • Condition: Used
  • Price: 39.0 EUR Auktion
  • Status: unsold
  • Item number: 295821716083
  • Bids: 0
  • Seller: eastpiont66x (113|100.0%)
  • Seller information: non commercial
  • Item location: Waldkirch Deutschland
  • Ships to: Worldwide
  • Shipping: 6,0 EUR
  • on EBAY
  • Description

    Aus alten Sammlungsbestand abzugeben.: 1 Stück Röhre :6B4G( AD1) USA, Sylvania. Geprüft. Value : 70 mAPrüfung ist nicht aktuell, daher als defekt angeboten. Optischer Zustand siehe Bilder, teil der Beschreibung. Aufgrund des Alters keine Garantie auf Funktion. Dies ist ein Privatverkauf, keine Rücknahme , keine Garantie .Irrtümer vorbehalten. Kosten für die Rücksendung trägt der Käufer.Mit Abgabe des Gebotes haben Sie die Bedingungen akzeptiert., From old collection stock to give away.:Used Tube: 6B4G ( AD1) Sylvania USA. Value: 70 mA.Tube is tested, but no updates. Sale as wrong. Optical condition see pictures, part of the description. Due to age no guarantee on function. This is a private sale, no return , no warranty . The buyer bears the return postageBy placing a bid you have accepted the conditions.Shipment only germany/ EU. Currently no shipping to Russia/ China.Other countries request before.

Rare AD1 (2A3) Tesla Vacuum Tube Triode Tested

End: 18.07. 2023 14:24:50 on Tuesday
  • Condition: Used
  • Price: 481.0 EUR FESTPREIS
  • Status: unsold
  • Item number: 394687142391
  • Seller: vintagetube (30|100.0%)
  • Seller information: non commercial
  • Item location: Nürnberg Deutschland
  • Ships to: Worldwide
  • Shipping: 0,0 EUR
  • on EBAY
  • Description

    Rare AD1 Tesla Vacuum Triode. Used. Fully tested. Please do not hesitate to contact me for any questions.

PAIR TUBES RE604 globe Telefunken TFK matched curves with Sofia NOS perfect AD1

End: 14.07. 2023 05:00:13 on Friday
  • Condition: Used
  • Price: 1200.0 EUR FESTPREIS
  • Status: sold
  • Item number: 185984923395
  • Seller: brucknerhorn (109|100.0%)
  • Seller information: non commercial
  • Item location: Bologna Italien
  • Ships to: EuropeanUnion
  • Shipping: 13,0 EUR
  • on EBAY
  • Description

    In the last century I bought a few thousand tubes and tested them with the computerized curve tracer Sofia by Audiomatica. The tubes I purchased were mostly direct heated triodes ( DHT ) and high transconductance noval. Over time I have kept only the most linear tubes and matched them. In the coming weeks a part of my collection will be on sale (among these DHTs such as UX201A, CX301A, 171A, 112A, CV1660, 3A/110A, AC/P4, 801A, 10Y, 801 RCA ceramic base, RE604 TFK globe, RE084, RE134, D3A Siemens, etc )If you need information on the interpretation of the curves or enlargements of specific areas, just ask.It should be noted that Sofias software makes an error when measuring direct heated tubes.The cathode reference point is lifted up by half of the heater voltage; so, for example, when the filament is fed at 4 volts, all curves are actually measured at 2 volts less than nominal. The curve you see at -40 volts is actually at -42 volts. The higher the voltage of the filament, the greater the difference (especially with the family of 10Y/VT25/VT62/801A etc with a 7.5 volt filament the error is 3.75 volts) You can read about it on the dedicated page in Sofia by Audiomatica on the Jac music website. Auction for one matched pair of RE604 globe Telefunken NOS only tested ( numbers no 30 and no 40) Full emission, same construction You see the curves of each triode and the third image with the curves overlapped For any infos and for combined shipping, please ask. For shipping outside Europe, please ask for better prices

TUBE " PHILIPS AD1 " TESTED

End: 13.06. 2023 15:47:17 on Tuesday
  • Condition: Used
  • Price: 9.26 EUR Auktion
  • Status: sold
  • Item number: 256101644768
  • Bids: 1
  • Seller: german-tubes (7920|99.6%)
  • Seller information: Commercial (with base shop)
  • Item location: Battiest, Oklahoma USA
  • Ships to: Worldwide
  • Shipping: 12,09 EUR
  • on EBAY
  • Description

    Tube Philips AD1. The Emission are NOT !! GOOD. ( look to the Picture ). The items are shipped with German Post. 61Z