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MISC - Mechanical Filters for Collins 75A4 FS Mechanical Filters for Collins 75A4 For Sale: - I have a pair of Collins mechanical filters that were used in a Collins 75A4 receiver. They have been tested, and both work well. These plug into the 9 pin socket behind the front panel of the 75A4. It is quite likely that they can be used in other receivers as well. - 300 Hz filter for narrow CW - 9000 Hz for AM - Each filter is $195. Buy both of them for $375. - Prices do not include shipping from Florida. - Thanks. 73, Ken Simpson, W8EK Voice Phone (352) 732-8400 . Listing #1760248 by W8EK Submitted on 02/26/26 Submitted from customer.mmmiflx1.isp.starlink.com Click to Contact Back to Previous Page

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