TS-164 Version of the BC-221

The TS-164 was a repackaging of the BC-221 to achieve some of the in-flight benefits enjoyed by Navy operators with their permanently mounted LM series frequency meters. It eliminated dragging the BC-221 out from its storage location, the risk of sagging internal batteries on long flights, and made for a visually clean installation - the top of the TS-164 is at the same height as the BC-348. It sits on a shock mount that looks very much like the one for the AN/ARC-5 (and related) command set modulators, but the spacing is slightly different.



It was primarily intended to be used with the BC-224/348 receivers, but wasn't restricted to those particular sets. The TS-164 case had a unique current sensing relay that responded to the main power switch of the BC-221, simultaneously applying B+ from the receiver dynamotor without requiring any rewiring of the BC-221 installed in the CY-182/AR shell. In that sense, it was a remarkable exercise in minimalism.

Components in rear compartment needed to provide power when BC-221 power switch is turned on. Unfortunately, these components were often stripped out to convert the set to 115vac.

Below is the preliminary "manual" enclosed with each TS-164.

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