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Originally Posted by Chad Hauris
There is about a 5 to 10 mfd electrolytic in the circuit if it's a ratio detector and this may be bad if you have not replaced it.
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Yeah, there was a 5 microfarad (100v) electrolytic in there, and the audio was really garbled before I replaced it. I didn't have one, so I used a 10 microfarad electrolytic - it helped, but the audio was still garbled.
I did some careful tweaking, and was able to get FM to come in clearly on strong stations. AM is still a bit off. It still needs a proper alignment, I'll wait until I get a schematic or a Sam's - I'm having a bit of trouble determining what coils do what - this is the first time I've done any sort of adjustment to an FM set. Also, the broken dial cord is going to take a bit of figuring out without a manual.
I have an Eico 377 signal generator, but it won't go up high enough to do FM (as far as I know...).
This radio uses a really odd pilot lamp - at least, it seems odd that it would be on a radio. It was missing when I got the radio, so I don't know what it originally looked like. The socket looks a car tail light socket, with two contacts in the base (like for a brake light). Now, I haven't actually tried putting a tail light bulb in there yet, but it seems kind of odd that a radio would use such a bright (and heat producing) bulb for an indicator. And why a dual filament bulb? I honestly haven't traced the wiring for it (shame on me, I know). Also, the bulb is mounted on a bracket above the dial scale, so when the radio is in the cabinet, the bulb will be pressed directly into the wooden inside of the cabinet - not shining out. There is a woven pad, presumably asbestos or similar heat sheilding material in the front of the cabinet that lines up with this bulb. This would have likely lit up the glass dial scale from the edge. If I get a chance, I'll have to pick up a bulb at the auto parts store and see if it works, so I don't have to steal one from my car. (I know, officer, but I've got like six of 'em back there, and I needed one for my radio - one light out can't be that big of a deal, right?)
The record changer doesn't work either, it won't spin. It isn't badged, but it looks kinda like a Webster-Chicago. The three speed mechanism uses two little pulleys with drive shafts, coupled to the motor drive shaft with a now-crumbled rubber belt. The speed selector engages one of these at a time, at different positions, to set the speed. The idler wheel looks OK, but this belt is/was a small diameter, approx. 3/8" wide, red thing. Anyone know how big this is supposed to be, so I can find a replacement?
-Ian