[TMC] FFR Tuning Units

[Tom Brent]

It's time for my annual request for help in finding any of the low frequency 
tuning units for the TMC model FFR strip receiver - military nomenclature 
AN/FRR-49, AN/FRR-502, & R-5007/FRR-502:

TN-274  50-100KHz (TMC model FFRD-1)

TN-275 100-200KHz (FFRD-2)

TN-276  200-400KHz (FFRD-3)

TN-277  500KHz (FFRD-3M)

I would like to purchase any & all of these. I also have some HF tuning 
units to trade.

Happy tinkering!

Tom
._._.