Here is are 3 different bandwidths of 40.455 MHz center frequency IF roofing filters, such as used in WJ and RACAL HF receivers.  These were made for WJ by Networks International Inc.  The bandwidths and part numbers are as follows:  18 KHz (Network A516, WJ p/n 92601A),  24.5 KHz (Network A516, WJ p/n A 92600A) and 32 KHz.    Size is 3/4 inch wide by 1 3/4 inch long by 3/4 inch high.  You choose which ONE you want and inform at time of purchase, as I am selling these one at a time.  When I sell out of a type I will edit the listing.  Very handy for those building HF radios, updating older designs, etc.

NOTE: As of 9/11/17 18 kHz (6 left), I have 36 pcs of 24.5 left.

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