Hi All,
New to the Forum. I feel lucky to have found this thread. I've been working on a similar unit. I mainly have tube amp experience for guitar amps but this is my first time fixing a Hi Fi amp. I'm looking at a Philips F6CI1A, from the pic's provided by stevland it's basically the same unit (although not in as good condition). Tube line up is identical but the two channels (left and right) are in one chassis. I didn't have a schematic, but the one provided by s-petersen look like a good start. I fired it up and it is stable, but one channel isn't working, I'm thinking the caps are bad, but with out a schematic it's hard to see what else is going on. My curious about the the field coil speaker (new to me) and how the connect/work with the OT and what appears to be a choke. It looks like the 6at6 is the single triad pre-amp, and the 12ax7 is the phase inverter, long tailed pair, feeding a push pull configuration into the two 6CW5. Any correction or hints where to start are welcome.