[Collins] Collins 75A4 and accessories For Sale

[tgrieco at optonline.net]

Good morning,
Wondering if you know anyone in Florida that is qualified to service my 
75A4 needing all the caps replaced ?
Thanks for your time.
K1SYN
Tom Grieco


        ------ Original Message ------
        From: collins at mailman.qth.net
        To: collins at mailman.qth.net
        Sent: Wednesday, March 11th 2026, 10:35 AM
        Subject: [Collins] Collins 75A4 and accessories For Sale



  Collins 75A4 Receiver, Filters,
  Knobs, and more For Sale:

  .

  Collins 75A4 Receiver

  The Collins 75A-4 is a high quality amateur
  band receiver covering the frequency ranges
  of 1.5-2.5, 3.2-4.2, 6.8-7.8, 14-15, 20.8-21.8,
  26.5-27.5, 28-29 and 29-30 MHz. It has a double
  conversion, crystal controlled front end for
  high stability and good image rejection. It has
  a permeability tuned, sealed master oscillator
  for accurate dial calibration. It utilizes
  mechanical filters for outstanding selectivity.
  Other features include passband tuning, crystal
  calibrator, mute line, noise limiter and
  Q-multiplier. The radio's controls are very easy
  to use. There is a backlit S meter. All lights
  work. It requires a speaker.

  17.25 x 10.5 x 15.5 inches 35 lbs.

  This one has been partially restored. Several
  capacitors have obviously been replaced. I have
  listened to signals on it. No hum. But it needs
  more work. Cosmetically it is OK, but not collector
  quality.

  Buy it for $300

  .

  Mechanical Filters for Collins 75A4

  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.

  .

  Knobs for Collins 75A4 For Sale:

  These knobs are for a Collins 75A4 receiver,
  although I am sure that they can be used on
  other ham rigs as well.

  Both are made by Daka-ware, Chicago, and
  appear to be new. The smaller, 1 5/8 inch knob,
  is still completely sealed, so is new for sure.
  The larger 3 inch knob is in a zip lock bag, so
  I can not confirm that it is new, but it certainly
  looks like it.

  Both of these were in a box from a silent key
  marked as 75A4 parts.

  1 5/8 inch diameter - $15

  3 inch diameter $30

  Buy both for $42.

  .

  I also have many other accessories available
  such as many different types of microphones,
  HTs, VHF and UHF rigs, HF and VHF/UHF antennas,
  connectors, miscellaneous accessories, etc.
  Just too many to list here. Please e-mail your
  requests.

  .
  Prices do not include shipping from Florida.

  Thanks.

  73, Ken, W8EK

  Ken Simpson
  E-mail to W8EK at FLHam.net or W8EK at arrl.net
  Voice Phone (352) 732-8400





  .
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