[Collins] Collins filter

[Dr. Gerald N. Johnson]

On Tue, 2006-03-07 at 15:28 -0600, Bill M Jenkins wrote:
>         
>         I have for sale a Collins mechanical filter, F455 FA 21 6432.
> Part number 526 9427 00. It is for 32S3/3A according to Collins
> literature. Price is $45.00  plus what ever USPS charges for postage. I
> will pack it securely. Please respond directly to me. 
> 
>         Bill Jenkins
>         W5ICS
>         bmjar.1 at juno.com

The digits 6432 are not part of the model, they are the date code, made
the 32nd week of 1964.

This is the plastic cased filter used in later KWM-2/A and 75S3B/C,
perhaps earlier. It plugs into the receiver but is soldered in the
transmitter and transceiver. 2.1 KHz bandwidth, the standard original
filter for these radios. Fits a pair of TO-5 transistor sockets.

-- 
73, Jerry, K0CQ, Technical Advisor to the CRA
All content copyright Dr. Gerald N. Johnson, electrical engineer