Angeboten werden 2 Röhren EL51 vom Hersteller Tesla (Teslovak, CSSR). Die Röhren sind neu und ungebraucht und wurden mir von einem österreichischen Generalimporteur für JJ (Nachfolger von Teslovak) verkauft. Beide Röhren liefern auf Funke W19 60mA,was mehr als 100% entspricht. Bei einer Röhre fehlt die Verpackung. Die Serien-Nrn. lauten 726 und 851. Eine Röhre stammt lt. Stempel vom August 1953.

Pentode de puissance - Tube électronique EL51 de marque TESLA, dans sa boite dorigine, jamais utilisé. Tarif indiqué pour un tube, trois exemplaires disponibles.

Pentodes de puissance - Paire de tubes électroniques EL51 de marque TESLA, livrés dans boites génériques.

For sale: 4pcs tubes EL51 TESLA from 50sAll the photos and tubes I show you, are taken by me and belong to me. All tubes are measured, I chose 4 similar ones from 12 pieces for you.My Tesla BM215 measuring device is not an accurate instrument and shows conventional units of measurement.Due to unstable electricity voltage at my home, the readings have an error of 1-2 units.I recorded the minimum values of the anode current ( Ia ) without heating the tubes for more than 1-2 minutes.All tube bases are solid, some are glued again.The amplifier you see in the photo may not be working, I have not tested the tubes and for this reason I cannot say with a 100% guarantee that these tubes are working.I will make a secure package for delivery, but I do not provide any guarantees for items over 60 years old.But it is selling as it is on photos, without guarantee. Thank you for understanding. For buyers from the European Union , shipping costs - 20€Shipping to China and South Korea costs - 25€ Shipping to Japan, Hong Kong costs - 30€ Taiwan buyers: delivery takes more than a month...if you dont want to wait patiently for the item, please dont bid. Thank you for your understanding.

For sale: 4pcs tubes EL51 TESLA from 50sAll the photos and tubes I show you, are taken by me and belong to me. All tubes are measured, I chose 4 similar ones from 12 pieces for you.My Tesla BM215 measuring device is not an accurate instrument and shows conventional units of measurement.Due to unstable electricity voltage at my home, the readings have an error of 1-2 units.I recorded the minimum values of the anode current ( Ia ) without heating the tubes for more than 1-2 minutes.All tube bases are solid, some are glued again.The amplifier you see in the photo may not be working, I have not tested the tubes and for this reason I cannot say with a 100% guarantee that these tubes are working.I will make a secure package for delivery, but I do not provide any guarantees for items over 60 years old.But it is selling as it is on photos, without guarantee. Thank you for understanding. For buyers from the European Union , shipping costs - 20€Shipping to China and South Korea costs - 25€ Shipping to Japan, Hong Kong costs - 30€ Taiwan buyers: delivery takes more than a month...if you dont want to wait patiently for the item, please dont bid. Thank you for your understanding.

TESLA EL51 old-production TESLA EL 51 audio frequency power pentode. These are huge tubes capable of delivering 45W of power, two of these in a balanced circuit at 750Va will deliver 140W of power! These are one of the biggest audio output tubes made (up to with EL151, EL156, F2A etc.) Made in Czechoslovakia in the 1960s in the Tesla Roznov factory NOS/never used, NIB Tested on RoeTest (computer controlled professional tube tester), using the Funke card setting Ua: 200V, Ug1: -2V, Ug2: 150V where good starts at Ia 27mA and 100% is 45mA Tube1 (No.2): 129%, Ia = 58 mA, Extremely high quality audio tube for hifi/high-end/guitar amplifiers. Shipping within Europan Union : 17EUR | Shipping to GB 20EUR | Shipping to USA 20EUR | China / Japan / S.Korea: 25EUR | Versand nach Deutschland 17 EUR | Versand innerhalb Österreichs 7 EUR | For shipping costs to other countries- email me| Abholung / Besichtigung in 1200 Wien möglich For countries outside the European Union customs and import taxes may apply Item will be shipped from Austria. Combine shipping is possible !Tesla Der Artikel wird verkauft wie beschrieben. Privatverkauf ohne weiterführende Garantie oder Gewährleistung und ohne Rücknahme.Versand erfolgt auf Kosten und Risiko des Käufers. Mit Abgabe eines Gebotes erklärt der Bieter sich hiermit einverstanden.Bilder sind Bestandteil der Beschreibung

TESLA EL51 old-production TESLA EL 51 audio frequency power pentode. These are huge tubes capable of delivering 45W of power, two of these in a balanced circuit at 750Va will deliver 140W of power! These are one of the biggest audio output tubes made (up to with EL151, EL156, F2A etc.) Made in Czechoslovakia in the 1960s in the Tesla Roznov factory NOS/never used, NIB Tested on RoeTest (computer controlled professional tube tester), using the Funke card setting Ua: 200V, Ug1: -2V, Ug2: 150V where good starts at Ia 27mA and 100% is 45mA Tube1 (No.2): 129%, Ia = 58 mA, Extremely high quality audio tube for hifi/high-end/guitar amplifiers. Shipping within Europan Union : 17EUR | Shipping to GB 20EUR | Shipping to USA 20EUR | China / Japan / S.Korea: 25EUR | Versand nach Deutschland 17 EUR | Versand innerhalb Österreichs 7 EUR | For shipping costs to other countries- email me| Abholung / Besichtigung in 1200 Wien möglich For countries outside the European Union customs and import taxes may apply Item will be shipped from Austria. Combine shipping is possible !Tesla Der Artikel wird verkauft wie beschrieben. Privatverkauf ohne weiterführende Garantie oder Gewährleistung und ohne Rücknahme.Versand erfolgt auf Kosten und Risiko des Käufers. Mit Abgabe eines Gebotes erklärt der Bieter sich hiermit einverstanden.Bilder sind Bestandteil der Beschreibung

TESLA EL51 old-production TESLA EL 51 audio frequency power pentode. These are huge tubes capable of delivering 45W of power, two of these in a balanced circuit at 750Va will deliver 140W of power! These are one of the biggest audio output tubes made (up to with EL151, EL156, F2A etc.) Made in Czechoslovakia in the 1960s in the Tesla Roznov factory NOS/never used, NIB Tested on RoeTest (computer controlled professional tube tester), using the Funke card setting Ua: 200V, Ug1: -2V, Ug2: 150V where good starts at Ia 27mA and 100% is 45mA Tube1 (No.2): 129%, Ia = 58 mA, Extremely high quality audio tube for hifi/high-end/guitar amplifiers. Shipping within Europan Union : 17EUR | Shipping to GB 20EUR | Shipping to USA 20EUR | China / Japan / S.Korea: 25EUR | Versand nach Deutschland 17 EUR | Versand innerhalb Österreichs 7 EUR | For shipping costs to other countries- email me| Abholung / Besichtigung in 1200 Wien möglich For countries outside the European Union customs and import taxes may apply Item will be shipped from Austria. Combine shipping is possible !Tesla Der Artikel wird verkauft wie beschrieben. Privatverkauf ohne weiterführende Garantie oder Gewährleistung und ohne Rücknahme.Versand erfolgt auf Kosten und Risiko des Käufers. Mit Abgabe eines Gebotes erklärt der Bieter sich hiermit einverstanden.Bilder sind Bestandteil der Beschreibung

TESLA EL51 old-production TESLA EL 51 audio frequency power pentode. These are huge tubes capable of delivering 45W of power, two of these in a balanced circuit at 750Va will deliver 140W of power! These are one of the biggest audio output tubes made (up to with EL151, EL156, F2A etc.) Made in Czechoslovakia in the 1960s in the Tesla Roznov factory NOS/never used, NIB Tested on RoeTest (computer controlled professional tube tester), using the Funke card setting Ua: 200V, Ug1: -2V, Ug2: 150V where good starts at Ia 27mA and 100% is 45mA Tube1 (No.2): 129%, Ia = 58 mA, Extremely high quality audio tube for hifi/high-end/guitar amplifiers. Shipping within Europan Union : 17EUR | Shipping to GB 20EUR | Shipping to USA 20EUR | China / Japan / S.Korea: 25EUR | Versand nach Deutschland 17 EUR | Versand innerhalb Österreichs 7 EUR | For shipping costs to other countries- email me| Abholung / Besichtigung in 1200 Wien möglich For countries outside the European Union customs and import taxes may apply Item will be shipped from Austria. Combine shipping is possible !Tesla Der Artikel wird verkauft wie beschrieben. Privatverkauf ohne weiterführende Garantie oder Gewährleistung und ohne Rücknahme.Versand erfolgt auf Kosten und Risiko des Käufers. Mit Abgabe eines Gebotes erklärt der Bieter sich hiermit einverstanden.Bilder sind Bestandteil der Beschreibung

4x TESLA EL51 You are bidding on four matched an old-production TESLA EL51 audio frequency power pentodes. These are huge tube capable of delivering 45W of power, two of these in a balanced circuit at 750Va will deliver 140W of power! Same datecodes and matched by emissions. This is one of the biggest audio output tube made (up to with EL151, EL156, F2A etc.) Tubes are never used and come in original boxes! Tested: Tube1: Ia = 100 mA ; S = 14 mA/VTube2: Ia = 102 mA ; S = 14 mA/VTube3: Ia = 99 mA ; S = 14 mA/VTube3: Ia = 103 mA ; S = 14 mA/V Datecodes: 2/1968 Extremely high quality audio tube for hifi/high-end/guitar amplifiers. Combine shipping is possible ! ----------------------------------- ->SEE MY OTHER ITEMS<-

TESLA EL51 old-production TESLA EL 51 audio frequency power pentode. These are huge tubes capable of delivering 45W of power, two of these in a balanced circuit at 750Va will deliver 140W of power! These are one of the biggest audio output tubes made (up to with EL151, EL156, F2A etc.) Made in Czechoslovakia in the 1960s in the Tesla Roznov factory NOS/never used, NIB Tested on RoeTest (computer controlled professional tube tester), using the Funke card setting Ua: 200V, Ug1: -2V, Ug2: 150V where good starts at Ia 27mA and 100% is 45mA Tube1 (No.2): 129%, Ia = 58 mA, Extremely high quality audio tube for hifi/high-end/guitar amplifiers. Shipping within Europan Union : 17EUR | Shipping to GB 20EUR | Shipping to USA 20EUR | China / Japan / S.Korea: 25EUR | Versand nach Deutschland 17 EUR | Versand innerhalb Österreichs 7 EUR | For shipping costs to other countries- email me| Abholung / Besichtigung in 1200 Wien möglich For countries outside the European Union customs and import taxes may apply Item will be shipped from Austria. Combine shipping is possible !Tesla Der Artikel wird verkauft wie beschrieben. Privatverkauf ohne weiterführende Garantie oder Gewährleistung und ohne Rücknahme.Versand erfolgt auf Kosten und Risiko des Käufers. Mit Abgabe eines Gebotes erklärt der Bieter sich hiermit einverstanden.Bilder sind Bestandteil der Beschreibung