Sieman-Phillips 7308 and JAN Phillips 6922


Hi all. In comparing the two tubes innards, I noticed that they are identical as far as I can tell. Is it possible the JAN or the Sieman versions were rebranded? Are they the same tube possibly? They even sound similar. Thanks.
monjul

Showing 1 response by nonoise

Tomycy6 is right. For a better understanding and history go to Brent Jessee's site and read what he has to say about the 6922 tubes.