Description
These are the older style "loaf of bread" type mechanical filters ( "disk & wire" type) made by Collins. I located the part number in a 1970 Catalog for Collins Filters that I found online. These are 455 KHz center frequency and are Upper Sideband (USB)style filters. The model number is 526-9665-010 ( old P/N F455Z23C) and are 3.0 KHz BW. These assemblies were removed from Watkins Johnson demodulator equipment. Instead of me removing these from the boards, I left them intact so you have all the matching components, hardware, etc. I can remove them for you if you wish, it is no big deal. I will ship in a box with the filter wrapped up carefully. Have fun!