You have not head your speakers until you have heard the drivers directly connected to your amplifier's output transformer....
This is yet another variant on The Line Stage... all the other attributes apply.. same 80% nickel coupling transformer... same 80% nickel volume control... I just worked in a 1/3 octave variable frequency low pass and high pass filter... each with their own nickel autoformer level control...
For this commission I used the Yamamoto sockets that accept two different four pin tubes by rotating the tube 45 degrees in the socket. This unique socket allowed me to use a PX4 or a 45 for the bass channel, and a Western Electric 104d or a mesh 50 on the mid and high channel - without even flipping a switch!
The crossover uses fourteen custom nickel transformers... and western electric globe thyratron rectifiers... I miss this piece!
sorry for so few pictures... hard drive crash victim... :^(
Care to play name that tube?