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Last modified 2013-08-12

Collins 75S-1

A picture of Collins 75S-1

SPECIFICATIONS

GENERAL
Type:Amateur HF receiver
Frequency range:10-80 m in 14 bands:

3.4-3.6 MHz
3.6-3.8 MHz
3.8-4.0 MHz
7.0-7.2 MHz
7.2-7.4 MHz
14.0-14.2 MHz
14.2-14.4 MHz
14.8-15.0 MHz
21.0-21.2 MHz
21.2-21.4 MHz
21.4-21.6 MHz
28.5-28.7 MHz
plus two optional 200 KHz ranges in the 10 m band
Tuning steps:Continuous
Mode:AM/USB/LSB/CW
Memory channels:-
Power supply:Mains: 110-115 VAC
Current drain/power consumption:90 W
Antenna impedance/connector:50 ohms / Phono (RCA)
Dimensions (W*H*D):374*169*292 mm (14.75*6.6*11.5")
Weight:9.1 Kg (20 lb)
Other features:100 KHz crystal calibrator




RECEIVER SECTION
Receiver system:Double conversion superheterodyne
1st IF: 2.9-3.1 MHz
2nd IF: 455 KHz
Sensitivity:SSB: 1 uV (15 dB S+N/N)
Selectivity:AM: 4.5 KHz (-6 dB), 25 KHz (-60 dB)
SSB: 2.1 KHz (-6 dB), 4.2 KHz (-60 dB)
CW: 500 Hz (-6 dB), 1 KHz (-60 dB) with optional filter
Image rejection:>50 dB
AF output power/speaker:Max 1.8 W at ?% distortion / External speaker: 4 ohms
External speaker connector:Phono (RCA)




MISCELLANEOUS
Manufactured:USA, 1958-1962 (Discontinued)
Additional info:A total of 10 tubes
New price 1958 in the US: $495.00
Related documents:User manual (2.9 MB)
Modifications:
Options/Accessories:
126A-1
312B-3
312B-4
F455Q-5
Noise blanker
Speaker
Station console
CW filter, 500 Hz
A rear picture of Collins 75S-1