She may look a little rough around the edges, but she purr’s like a finely tuned Jaguar.
The power section has cold war period tubes, mid 50’s Mil Sylvania’s 807’s (5933) and a 1960 Russian Mil 6N7 Dual triode phase inverter , all NOS.
The amp has a two channels, #1 is the blend channel its an active eq arrangement.
It has two controls Bass Vol and Treble Vol, as each knob is turned gain and Hi or Lo frequencies are increased.
Both channel #1 controls have there own tube 6SJ7 or EF86 ( they are both sharp cut off pentodes) they come together at the next gain stage (6SF5).
Skip had been employing this idea on his tube mixers with good results, we decided to adapt it and I must say its extremely useful.
We later found out from SoCal amp guru Tim Maag that Bob Crooks used this very idea in some 50L15’s (nothing new under the sun I guess )
Channel #2 is a completely different animal it is a totally flat eq and lends itself well to Jazz guitar or Hawaiian steel, it also has a lower gain.