"Norman:  Thanks for the 'heads up'. I may try a small clamp to hold the knob together while removing the screws. Alternatively, I may just try a drop of very lightweight oil, or would this have a lightweight grease instead.  Pot…"

"Tom: The three springs are strong but short and the screws are threaded into pot metal studs.  You must loosen the screws equally and uniformly to avoid damage to the pot metal.  If you remove two screws, the stress applied by the springs…"

"It is a planetary gear set.  I was only 13 years old when I disassembled mine but i don;t want to do it again."

"Curtis: Thanks for the response. I will check this out. I used to repair VCR's and 16MM movie projectors, so springs and gears don't scare me too much. I would think that the knob assembly is a planetary reduction gear set. When I got the…"

"Yes the knob comes apart.  Be warned, though,that if you take apart the gear reduction metal part of the knob it's hard to get it back together.  Your binding is probably just lack of clearance between the wood and metal parts of the…"

"Norman,   Thanks for the info! I see three big ones on the rear panel. Are those the only ones with the additional choke inside? I also have smaller ones 3 on the right panel and 5 on the bottom of the chassis as well as one in the…"

" "

"Those "bathtub" capacitors along the back of the chassis house not only a capacitor but also a choke.  Unless the capacitor within these units is basically shorted or sparking, they will still work.  If bad, it is best to remove…"

"Maybe someone has a receiver on a shelf where it is convenient to check. Mine is in a cabinet and I don't expect to have it out anytime soon. I wouldn't be overly concerned at this point. Meanwhile, replace outdated capacitors and basic…"

"Dave, Thanks! I did find an AW15 manual that with my AW12 manual was able to answer how the speaker is connected. The "good 760 Ohm" coil is the one biasing the 45 tubes, The open one must be the 2500 Ohm B+ coil. I'm looking for…"

"Corby -   You are correct that there are 2 field coils. My records show.....  One field should be about 900 ohms - the bias for the output 45 tubes (the two large pins on the 6 pin speaker plug).   The other field coil should be…"

"Oops, let me make a correction, the number is X190. Mike"

"Kent,what's up? I didn't get anyhing."