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Radios - Collins 75S-1 1961 |  |
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Radios Collins 75S-1, 1961 First receiver of the famous S-line, made from 1958 to 1961. The 32S-1 transmitter makes it a pair. AM/SSB/CW modes. Covers the 80 - 10 meter amateur bands in 14 200 KHz segmemnts. Has Waters Manufacturing Q-Multiplier/Notch Filter Model 337-75S-1 installed. AF gain is combined with RF gain, rejection tuning is where AF gain control would be. 10 tubes: 6DC6, 6U8A, 6U8A, 6BA6, 6BA6, 6U8A, 6AT6, 6BF5, 6DC6, 6AU6 plus a 12AX7 tube in the Q-Multiplier. With its legendary Collins mechanical filter, this unit has performance comparable to today's rigs, with fewer of the fancy newer features. 
The next Vintage Electronics Expo
will be on Saturday, January 25, 2025
at the Oakland Expo Center, 2212 Mall Dr E, Waterford, MI 
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