Collins 75A-4 Brand New Peter Dahl Replacement Main Transformer P/N PWDP13053. This Filter choke can be prone to fail in the a fore mentioned Collins receivers.  When this happens they no longer filter the Hum in the audio properly, and you can hear...

This Collins 75A-4 Receiver Original Manual P/N 520 5052 00 3rd Edition Revised 2 July 1957, is a brand new, old stock manual, in new condition. This manual looks much newer and is made like most of the Collins S-Linemanuals This is a very Late 75A-4...

This Collins 75A-4 Receiver Original Manual P/N 520 5052 00  Revision 1 October 1955, is a brand new, old stock manual, in new condition. This is an early 75A-4 manual. It is complete with the fold out schematic diagram intact. This and every Manual...

This Collins 75A-4 Receiver Original Manual P/N 520 5052 00 3rd Edition Revised 2 July 1957, is a brand new, old stock manual, in new condition. This is a very Late 75A-4 manual which will have All the Factory Updates. It is complete with the fold out...

This Collins 75A-4 Receiver Original Manual P/N 520 5052 00  Revision 1 October 1955, is in Excellent condition. This is a very early 75A-4 manual. It is complete with the fold out schematic diagram intact. This and every Manual I sell, comes with a...

This Collins 75A-4 Receiver Original Manual P/N 520 5052 00 3rd Edition Revised 15 March 1957, is in Excellent condition. This is a very Late 75A-4 manual which will have most of the Factory Updates. It is complete with the fold out schematic diagram...

This Collins 75A-4 Receiver Original Manual P/N 520 5052 00 3rd Edition Revised 15 March 1957, is in Excellent condition. This is a very Late 75A-4 manual which will have most of the Factory Updates. It is complete with the fold out schematic diagram...

This Collins 75A-4 Receiver Original Manual P/N 520 5052 00 3rd Edition Revised 15 March 1957, is in Excellent condition. This is a very Late 75A-4 manual which will have All the Factory Updates. NOTE: This manual has several Service bulletins with it...

This Collins 75A-4 Receiver Original Manual P/N 520 5052 00 3rd Edition Revised 2 July 1957, is in Excellent condition. This is a very Late 75A-4 manual which will have All the Factory Updates. It is complete with the fold out schematic diagram intact...

This Collins 75A-4 Receiver Original Manual P/N 520 5052 00 3rd Edition Revised 2 July 1957, is in Excellent condition. This is a very Late 75A-4 manual which will have All the Factory Updates. It is complete with the fold out schematic diagram intact...

This Collins 75A-4 Receiver Original Manual P/N 520 5052 00 2nd Edition Revised 1 July 1956, is in very good condition. It is complete with the fold out schematic diagram intact. There are a few "Character Lines" on the cover but other than that it is in...

Collins 75A-4 Receiver Original Manual with Metal Clasp Binder P/N 520 5052 00 March 1957 #18 This and every Manual I sell, comes with a money back satisfaction guarantee. I do carefully check each used manual but due to the high volume of used manuals I...