Quote:
Originally Posted by Captainclock
I believe mine's an original 21 so I don't think it has any IC chips in it. The electrolytics don't appear to be bad but of course they could be bad even if they don't look it (no cap bulge). The electrolytics are mainly on the amplifier board, there aren't any on the tuner board surprisingly enough. Now I noticed that the Model 21 has an RCA Plug that says "Tuner out" was this meant to be able to have a multiplex unit hooked up to it so it could be FM Stereo like the Model 8? Also I'm missing one of the knobs on this unit and I was wondering where I might source a replacement knob for this unit.
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The ua703, if made by Fairchild, looks like a slightly larger transistor. The brown button ones were extremely unreliable. IIRC, they were replaced by a GE-IC12, NLA.