[SMCARA] AUDIO FREQUENCY DETECTOR MX-2840/URR

[ROBERT CARTER]

Ladies and gentlemen:

Selling one Audio Frequency Detector, MX-2840/URR.  Originally designed to convert the 455KC [AM] output of the R-390 to an independent audio channel.  Includes power cable and technical/operator manual NSA-MX-2840/URR.  19" rack mount 1RU.  As I recall, the 1N198 half-wave rectifier was shorted but I never got around to replacing it.  Now I no longer have R-390s/SP-600s.  Price: $10 US.  See/pick up in scenic Hughesville, MD.  Thanks for the read.

Regards - BOB - W5BTC