Bottlehead Forum

Bottlehead Kits => Eros Phono => Topic started by: kip.duff on December 02, 2017, 05:07:39 PM

Title: tube position identification question
Post by: kip.duff 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.

Title: Re: tube position identification question
Post by: Paul Birkeland 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.

Title: Re: tube position identification question
Post by: kip.duff on December 03, 2017, 03:29:51 PM

Thanks........