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Collins 75S-3B

75S-3B
Amateur Band Communications Receiver Rating (1-5): HHHHH (5)
Made In: United States 1963-1975 Voltages: 115/230 VAC 50-400 Hz
Coverage: Ham. See Comments. Readout: Analog Lin.
Modes: AM/LSB/USB/CW Selectivity: 2.1/_/_/_ kHz -6dB.
Circuit: Double Conversion Superheterodyne. 11 Tubes plus Semiconductors. Physical: 14.75x7.75x12.5" 20 Lbs. 375x197x317mm 9.1 kg
Circuit Complement: 6DC6 Crystal Cal., 6DC6 RF Amp, 6EA8 1st Mixer/Crystal Osc, 6EA8 2nd Mixer/Cathode Follow, 12AX7 Q-Mult, 6BA6 1st IF Amp, 6BA6 2nd IF Amp, 6AT6 AGC Rectifier/AM Detector/AF Amp, 6BF5 AF Output, 6DC6 BFO, 6AU6 VFO plus semiconductors.
Features: " Head. Jack S-Meter Preselector Calibrator 100 kHz RF Gain Rejection Tuning Dial Lamp AGC OFF/SLO/FST Standby Anti-Vox Jack Sidetone Jack Mute BFO Fiduciary Adjust
Accessories: 312B-3 Speaker, 312B-4 Station Console, X455KQ200 200Hz Filter, F455FA-05 500Hz Filter, F455FA-08 800Hz Filter, F455FA-15 1500Hz Filter, F455FA-40 4000Hz Filter, F455FA-31 3100Hz Filter
New Price: $620-795 Used Price: $450-750
Comments: Ranges: 3.4-3.6, 3.6-3.8, 3.8-4, 7-7.2, 7.2-7.4, 14-14.2, 14.2-14.4, 14.8-15, 21-21.2, 21.2-21.4, 21.4-21.6 and 28.5-28.7 MHz. Matches the 32S-3 transmitter. Requires a speaker.
red arrow Click here to view color photo and more information or click here to view sold archive at Universal Radio.

Collins 75S-3C

75S-3C
Amateur Band Communications Receiver Rating (1-5): HHHHH (5)
Made In: United States 1964-1975 Voltages: 115/230 VAC 50-400 Hz
Coverage: Ham. See Comments. Readout: Analog Lin.
Modes: AM/LSB/USB/CW Selectivity: 2.1/_/_/_ kHz -6dB.
Circuit: Double Conversion Superheterodyne. 11 Tubes plus Semiconductors. Physical: 14.75x7.75x12.5" 20 Lbs. 375x197x317mm 9.1 kg
Circuit Complement: 6DC6 Crystal Cal., 6DC6 RF Amp, 6EA8 1st Mixer/Crystal Osc, 6EA8 2nd Mixer/Cathode Follow, 12AX7 Q-Mult, 6BA6 1st IF Amp, 6BA6 2nd IF Amp, 6AT6 AGC Rectifier/AM Detector/AF Amp, 6BF5 AF Output, 6DC6 BFO, 6AU6 VFO plus semiconductors.
Features: " Head. Jack S-Meter Preselector Calibrator 100 kHz RF Gain Rejection Tuning Mute AGC OFF/SLO/FST Standby BFO Anti-Vox Jack CW Sidetone Jack
Accessories: 312B-3 Speaker, 312B-4 Station Console, X455KQ200 200Hz Filter, F455FA-05 500Hz Filter, F455FA-08 800Hz Filter, F455FA-15 1500Hz Filter, F455FA-40 4000Hz Filter, F455FA-31 3100Hz Filter
New Price: $690-3390 Used Price: $600-850
Comments: Ranges: 3.4-3.6, 3.6-3.8, 3.8-4, 7-7.2, 7.2-7.4, 14-14.2, 14.2-14.4, 14.8-15, 21-21.2, 21.2-21.4, 21.4-21.6 and 28.5-28.7 MHz. Matches 32S-3A transmitter. Same as the 75S-3B but with an additional HF crystal board (14 sockets) and front panel selector switch. Requires a speaker. Most production was sold in the price range of $690 to $1200. The very last run sold for $3390.
red arrow Click here to view color photo and more information or click here to view sold archive at Universal Radio.

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