Filters

The 300 hz filter is perfect for CW Communication work!   NOTE: Normally I have this filter in stock, but there are times when I may have a stock order being built for me and if this is the case, it can take up to two weeks before I can ship...

The 6KHz filter is perfect for AM Communication work! NOTE: Normally I have this filter in stock, but there are times when I may have a stock order being built for me and if this is the case, it can take up to two weeks before I can ship. These Curry...

This Collins F455 FA 21 Filter, is for the 75S-3 /A/B/C Receiver & 32S-3 Transmitter. This Collins Mechanical Filter is in excellent condition! The numbers on the unit are: F 455 FA 21, P/N 526 9427 00 It has been tested in a 75S-3B Receiver and comes...

Rockwell Collins Original 75S-3B and 75S-3C , F-455-FA-21 Filter 2.1 KC P/N 526-9427-000 Tested & Guaranteed  This Standard factory supplied 2.1 KC filter is  for the 75S-3, 75S-3C and a Rockwell Collins KWM-2A. (Only the Rockwell Collins...