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Last modified 2023-11-05

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Watkins-Johnson 521A

A picture of Watkins-Johnson 521A

SPECIFICATIONS

GENERAL
Type:HF/VHF receiver
Frequency range: 20-70 MHz
Tuning steps:? KHz
Frequency stability:? ppm
Mode:AM / FM / CW
Channels / memory management: None
Power supply:Mains
Current drain / power consumption:? W
Antenna impedance / connector:? ohm / ?
Dimensions (W*H*D):? mm (?")
Weight:? Kg (? lb)
Other features:Panoramic monitor (Max 300 KHz sweep width).




RECEIVER SECTION
Receiver system: ? conversion superheterodyne
Sensitivity:
Selectivity:4, 10 and 50 KHz (No reference)
Image rejection:
AF output power / speaker:? W at ?% distortion / ? ohm
External speaker connector:




MISCELLANEOUS
Manufactured:USA, 1967-197x (Discontinued)
Additional info: New price 1968 in the US: $3200
Related documents:
Modifications and fixes:
Reviews:
Options / Accessories:
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