tube position identification question

kip.duff · 1488

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Offline kip.duff

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on: December 02, 2017, 05:07:39 PM
The diagram shows the output tube as 7308- one of the tubes that came in the kit is labeled 12BH7A- is this the output tube?  I did not see data that shows 12BH7A is substitute for 7308.

Dr. Feickert Blackbird II w Reed 2A tonearm and Lyra Skala cartridge.  Eros 2.  Audio Note DAC 2.1 Signature.  BeePre with BeeQuiet and Paramount 1.1 monoblocs into A7 VOTTs or Nagoaka folded horns.

Offline Paul Birkeland

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Reply #1 on: December 03, 2017, 05:24:58 AM
The 12BH7 is the power supply regulator tube, which goes in the hole by the power transformer.

The output tube is labeled as a 7308, but we supply a 6922/6DJ8.  This is the center tube of the front three sockets.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline kip.duff

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Reply #2 on: December 03, 2017, 03:29:51 PM
Thanks........

Dr. Feickert Blackbird II w Reed 2A tonearm and Lyra Skala cartridge.  Eros 2.  Audio Note DAC 2.1 Signature.  BeePre with BeeQuiet and Paramount 1.1 monoblocs into A7 VOTTs or Nagoaka folded horns.

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