Quartett EL34 Tesla OO-Getter (NOS typ), Ip and gm matched quadAlle Röhren wurden exakt nach Hersteller geprüft bei Anodenspannung 250V, Schirmgitterspannung 250V und Steuergitterspannung -12,20V. 100mA Anodenstrom und 11,0mA/V Steilheit sind gleich 100%.Auf dem Röhrensockel ist der erste Wert der Anodenstrom in mA, der zweite Wert die Steilheit in mA/V. Darunter der Gitterstrom in µA.Die EL34 spielten zum Test in meinem PP Verstärker (AB Betrieb nach Mullard mit Ub=430V) einwandfrei.Rö. 1: 94,0mA / 12,1mA/VRö. 2: 95,0 mA / 11,9mA/VRö. 3: 95,0mA / 12,0mA/VRö. 4: 95,0mA / 12,2mA/V Ip and gm matched quad EL34 Tesla OO-getter (NOS typ).All tubes were tested exactly according to the manufacturer with plate voltage of 250V, screen grid voltage of 250V and control grid voltage of -12,20V. 100mA plate current and 11,0mA/V gm are equal to 100%.On the tube base, the first value is the plate current in mA, the second value is the slope in mA/V. Below this is the grid current in µA.When tested in my PP amplifier (AB operation according to Mullard with Ub=430V), the EL34 played perfectly.Rö. 1: 94,0mA / 12,1mA/VRö. 2: 95,0 mA / 11,9mA/VRö. 3: 95,0mA / 12,0mA/VRö. 4: 95,0mA / 12,2mA/V

Quartett EL34 Tesla OO-Getter (NOS typ), Ip and gm matched quadAlle Röhren wurden exakt nach Hersteller geprüft bei Anodenspannung 250V, Schirmgitterspannung 250V und Steuergitterspannung -12,20V. 100mA Anodenstrom und 11,0mA/V Steilheit sind gleich 100%.Auf dem Röhrensockel ist der erste Wert der Anodenstrom in mA, der zweite Wert die Steilheit in mA/V. Darunter der Gitterstrom in µA.Die EL34 spielten zum Test in meinem PP Verstärker (AB Betrieb nach Mullard mit Ub=430V) einwandfrei.Rö. 1: 94,5mA / 11,1mA/VRö. 2: 93,0 mA / 11,6mA/VRö. 3: 96,0mA / 11,7mA/VRö. 4: 96,5mA / 11,2mA/V Ip and gm matched quad EL34 Tesla OO-getter (NOS typ).All tubes were tested exactly according to the manufacturer with plate voltage of 250V, screen grid voltage of 250V and control grid voltage of -12,20V. 100mA plate current and 11,0mA/V gm are equal to 100%.On the tube base, the first value is the plate current in mA, the second value is the slope in mA/V. Below this is the grid current in µA.When tested in my PP amplifier (AB operation according to Mullard with Ub=430V), the EL34 played perfectly.Rö. 1: 94,5mA / 11,1mA/VRö. 2: 93,0 mA / 11,6mA/VRö. 3: 96,0mA / 11,7mA/VRö. 4: 96,5mA / 11,2mA/V

Quartett EL34 Tesla OO-Getter (NOS typ), Ip and gm tested quadAlle Röhren wurden exakt nach Hersteller geprüft bei Anodenspannung 250V, Schirmgitterspannung 250V und Steuergitterspannung -12,20V. 100mA Anodenstrom und 11,0mA/V Steilheit sind gleich 100%.Auf dem Röhrensockel ist der erste Wert der Anodenstrom in mA, der zweite Wert die Steilheit in mA/V. Darunter der Gitterstrom in µA.Die EL34 spielten zum Test in meinem PP Verstärker (AB Betrieb nach Mullard mit Ub=430V) einwandfrei.Rö. 1: 94,0mA / 12,4mA/VRö. 2: 94,5 mA / 12,6mA/VRö. 3: 95,5mA / 12,4mA/VRö. 4: 97,0mA / 12,4mA/V Ip and gm tested quad EL34 Tesla OO-getter (NOS typ).All tubes were tested exactly according to the manufacturer with plate voltage of 250V, screen grid voltage of 250V and control grid voltage of -12,20V. 100mA plate current and 11,0mA/V gm are equal to 100%.On the tube base, the first value is the plate current in mA, the second value is the slope in mA/V. Below this is the grid current in µA.When tested in my PP amplifier (AB operation according to Mullard with Ub=430V), the EL34 played perfectly.Rö. 1: 94,0mA / 12,1mA/VRö. 2: 95,0 mA / 11,9mA/VRö. 3: 95,0mA / 12,0mA/VRö. 4: 95,0mA / 12,2mA/V

Matched, Selected Quad Tesla EL34 /6CA7/ Power Pentode Tubes.Rare New Old Stock in Original Red Boxes. Same Production Codes: XF - Made June 1966.Tested on Professional Tube Tester L3-3Test Condition:Uf = 6,3VUa = 250VUg1 = - 7,3VUg2 = 250VResultsTube 1 Ia1 = 100mA S = 12,2mA/V Tube 2 Ia2 = 100mA S = 12,3mA/V Tube 3 Ia1 = 101mA S = 12,8mA/V Tube 4 Ia2 = 101mA S = 12,8mA/V Where 100% is Ia = 100mA S = 12,0mA/V Item will be sent by registered PRIORITY mail. Your purchase should arrive in 4-10 business days to EU countries, 10-31 business days to rest of the world.Im not responsible for customs duties and customs delays, if the goods will be shipped outside the EU.

Tested on a fully restored TV7-DU, by Dan Nelson, pictures of evidence for this included in the listing. It was restored and calibrated on October 21st 2021. Tubes are tested for shorts. PC= Plate Current DC= Date Code Please note, TV7 data minimum is equal to 60%. For example, (insert model number here) min value 60. If the tube tests at minimum 60, that is equal to 60%. The number over (/) is the minimum test data result as described in the TV7 DU tube testing manual. So 60/ (min) 60 = 60% tests NOS, cannot verify if they are genuine nos 52.7/30 PC= 43.6 I mark all my tubes, so please dont waste your time seeking to send me back your old dead tubes. All testers read differently. I have sought to have my tester as accurate as possible. I will not be giving partial refunds because you have received different test result. All tubes will be shipped well, an example of how I pack is pictured in the listing. (obviously these tubes are not included) I wont be lying on a customs form I combine shipping. If the tubes are of significant value, the postage will be extra due to insurance. If the valves sell for significant money, additional insurance shipping charges will be applied. Combined postage available

Tested on a fully restored TV7-DU, by Dan Nelson, pictures of evidence for this included in the listing. It was restored and calibrated on October 21st 2021. Tubes are tested for shorts. PC= Plate Current DC= Date Code Please note, TV7 data minimum is equal to 60%. For example, (insert model number here) min value 60. If the tube tests at minimum 60, that is equal to 60%. The number over (/) is the minimum test data result as described in the TV7 DU tube testing manual. So 60/ (min) 60 = 60% tests NOS, cannot verify if they are genuine nos 52.7/30 PC= 43.6 I mark all my tubes, so please dont waste your time seeking to send me back your old dead tubes. All testers read differently. I have sought to have my tester as accurate as possible. I will not be giving partial refunds because you have received different test result. All tubes will be shipped well, an example of how I pack is pictured in the listing. (obviously these tubes are not included) I wont be lying on a customs form I combine shipping. If the tubes are of significant value, the postage will be extra due to insurance.

NOS Tesla EL34 perfekte Paar(2 Stück)Hergestellt im 9. Monat 1983O Getter Brown BaseOriginalverpackung. Getestet auf TESLA BM 215A Tester.Unglaubliche Stimme!Garantierter Betrieb!NOS = Ia: 100 mA S: 10 mA / V. 1 / a Ia: 115 mA S: 11 mA / V 2 / a Ia: 110 mA S: 11 mA / V

Tested on a fully restored TV7-DU, by Dan Nelson, pictures of evidence for this included in the listing. It was restored and calibrated on October 21st 2021. Tubes are tested for shorts. PC= Plate Current DC= Date Code Please note, TV7 data minimum is equal to 60%. For example, (insert model number here) min value 60. If the tube tests at minimum 60, that is equal to 60%. The number over (/) is the minimum test data result as described in the TV7 DU tube testing manual. So 60/ (min) 60 = 60% tests NOS, cannot verify if they are genuine nos 52.7/30 PC= 43.6 I mark all my tubes, so please dont waste your time seeking to send me back your old dead tubes. All testers read differently. I have sought to have my tester as accurate as possible. I will not be giving partial refunds because you have received different test result. All tubes will be shipped well, an example of how I pack is pictured in the listing. (obviously these tubes are not included) I wont be lying on a customs form I combine shipping. If the tubes are of significant value, the postage will be extra due to insurance.

Up for your consideration is a matched Quad of Tesla EL34/6ca7 tubes. Audio Glassics was a tube reseller in the 70s to the 90s who stamped their name on lots of tubes. In this case they are made in Czechoslovakia EL34s . Photographs tell the rest of the story. Tubes will be professionally packed for safe transport to your door. I have some pairs and singles as well Please examine the photographs as there are an important part of the description in every listing. 73s & check out my other listings for all kinds of upcoming ham radio gear Shipping costs quoted are for the 48 lower states ONLY. Alaska & HI to be determined Questions ? For fastest response see my ebay about me page to contact me. Have some ham gear your not using ? Contact me I will buy it FAST! I will pick up or arrange shipping. 73s & Check out my other items! Sign up for my email newsletters by adding my eBay Store to your Favorites to see all kinds of upcoming ham gear listings. Shipping costs quoted are for the lower 48 states only. Alaska & Hawaii will be determined All items are offered as is and all sales are final. I will only accept a return if the item is not as described. Any claims of items not as described MUST be made within 24 hours of delivery. NO exceptions !!! By purchasing an item you are by default agreeing to these clearly visible terms. No more of this nonsense of having an item for weeks or months and claiming I just tried it and it does not work Or I did not have an antenna or power supply until weeks after purchase If you plan on being out of town for weeks when the item is delivered DONT buy it, wait till you return. Also I will not accept any returns at any time on any item where our anti taper sticker has been disturbed. No exceptions on that matter either

NOS Tesla EL34 perfekte Paar(2 Stück)Hergestellt im 9. Monat 1983O Getter Brown BaseOriginalverpackung. Getestet auf TESLA BM 215A Tester.Unglaubliche Stimme!Garantierter Betrieb!NOS = Ia: 100 mA S: 10 mA / V. 1 / a Ia: 115 mA S: 11 mA / V 2 / a Ia: 110 mA S: 11 mA / V

RARE Electrically and physically Matched Pair (2) of vintage NOS/NIB TESLA EL34/6CA7 BROWN BASE vacuum tubes with same date codes made in Czechoslovakia. Electrically test using a calibrated Sencore MU150 Continental II Vacuum Tube tester. These tubes test AS-NEW and have never been used. Due to the nature of vintage vacuum tube electronics, these tubes are being sold for parts AS-IS and will be properly packed for shipping. Please check my extensive feedback rating for confidence.

(10) NOS NIB to Strong Tesla and Other 6CA7/EL34 Guitar Audio Tubes Good Luck Bidding! (I NO LONGER SELL TO CHINA, VIETNAM OR INDONESIA DUE TO LOST PARCELS IN CUSTOMS, I DO NOT LOWER DECLARED VALUE OR WRITE AS GIFT ON CUSTOMS PAPER DUE TO US LAWS)