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philo wrote:
Thanks for the great explanation! As "analogdial" pointed out, it's actually an S 36 I did not examine the photos carefully enough The S-36 has a panadaptor connection on the back of the chassis. Altough I don't think it was often used. It's a mediocre radio by today's standards. Not particularly sensitive and the narrow bandwidth is way too wide for just one AM channel. The wide bandwidth is a bit too narrow for fully modulated broadcast FM but it wasn't too bad back in the day when some FMers broadcast with SCA. Worked well for TV FM audio. The audio was very good. I tried stagger tuning the IF transformers for wider bandwidth but that hurt the sensitivity on wide and nearly killed it on narrow. The damn thing was built to last. There's only one paper capacitor, in the power supply filter. 8 ufd of paper in a sealed steel can, if i recall. It's huge. I checked mine for leakage and it was still no worse than an equivelant electrolytic, so I left it alone. There's also one electrolytic (also in steel, looks like an oil and paper, mine was no good) for the cathode bypass in the audio amp. Everything else is silver mica. The resistors checked out 100%. Didn't look like any under chassis work had ever been done on the radio. Amazing. It has a really nice zero backlash gear drive. Probably the nicest thing about the radio. |
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