ciekawostka
: wt, 25 sierpnia 2009, 00:04
Forum miłośników lamp i retro radiotechniki
http://trioda.stareradia.pl/
...The pre-amplifier uses a Sovtek 6922 dual triode transistor.
Besides the Sovtek 6922, we also tested the amplifier with a Tungsram ECC88 dual triode transistor.