Unfortunatly, the stability of the receiver, both electrical and mechanical, were not up to the level needed to take full advantage of this selectivity. Later I acquired one of the mid-'50s vintage Heathkit Q-Multipliers and attached it to the receiver. I controlled the regeneration by adjusting the r.f. ![]() To increase the selectivity, I first made the IFs regenerative by soldering a little piece of insulated wire to the first IF plate, and moved it near the grid connection. I added a homebrew preselector to it to get adequate gain on 15 meters (band 4 gain was just a little wimpy). I used it for code practice, and was thus able to get my ham license just a few months later. When I purchased it (at a swap meet for the princely sum of $8.00) it worked fairly well. first non-regenerative and non-consumer shortwave radio. It was my first ham receiver and my first "real", i.e. Thanks.I have owned one of these since 1970. ![]() ![]() ![]() Can you tell me anything else about that model? Is that a reasonable price? Are there any known weaknesses, or problems with restoration? This would be my first serious SW radio. Haven't had a chance to fiddle with it, this is info from seller. It appears to be in respectable original condition with manual. Quote:Originally posted by Schulz:There is an HC S-20R near me that I may be able to get for $30 to $40.
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