K4OZY's Collins Repository

Collins R-627/URC-8 Receiver

Please give me a hand digging up information on a most unusual Collins receiver, the R-627/URC-8

Collins 30K Transmitters

Collins R-388 / 51J-(x) Receivers

• Early 51J-2 Receiver with 70E7-A PTO
  • Complete 51J-2 Manual, scan of Xerox (200 DPI, PDF, 6MB)
  • 51J-2 Schematic (300 DPI, PDF, 350KB)
• Later 51J-2 Receiver with 70E-15 PTO
  • Complete 51J-2 Manual (300 DPI, PDF, 17.5MB)
  • 51J-2 Schematic (600 DPI, PDF, 1.8MB)
• 51J-3 Receiver
  • 51J-3 Manual (8/16/51), Sections 1 - 4 (200 DPI, PDF, 4.1MB)
  • 51J-3 Manual (8/16/51), Section 5 (200 DPI, PDF, 3.5MB)
  • 51J-3 Manual (8/16/51), Section 6-7 (200 DPI, PDF, 2.7MB)
  • Will post schematics here asap..
• R-388 Receiver (Nearly identical to 51J-3)
  • Note that this manual is worthwhile even if you already have a 51J-3 manual, as it has more info and is more complete. Be sure to download and read the 4 "changes" to the TM, as they contain useful information and clarification of the alignment proceedure!
  • R-388/URR Manual (TM 11-854) Part 1 (200 DPI, PDF, 8.7MB)
  • R-388/URR Manual (TM 11-854) Part 2 (200 DPI (300 DPI for certain illustrations), PDF, 9.6MB)
  • R-388/URR Schematic (From TM 11-854) (300 DPI 2 x 8.5x11 pages, PDF, 0.6MB)
  • R-388/URR Schematic (From TM 11-854) (600 DPI single 11x17 scan, PDF, 2.5MB)
  • Changes No. 1 to TM 11-854, dated 4/54 (300 DPI, PDF, 0.6MB)
  • Changes No. 2 to TM 11-854, dated 11/55 (300 DPI, PDF, 0.8MB)
  • Changes No. 3 to TM 11-854 (dated 5/24/57, with many thanks to Bob AC0JL!)
  • Changes No. 4 to TM 11-854 (dated 11/25/63, with many thanks to Bob AC0JL!)
• 354A-1 Mechanical Filter Conversion Kit
  • Full Manual (300 DPI, PDF, 4MB, Scan of Xerox)
• 51J-4 Receiver
  • 51J-4 Collins Sales Brochure (PDF, 4.8MB)
  • 51J-4 Manual (8/54), Sec 1-5, 200DPI scan of Xerox (PDF, 5.5MB)
  • 51J-4 Manual (8/54), Sec 6, 200DPI scan of Xerox (PDF, 4.2MB)
  • 51J-4 Schematic (black on white) (PDF, 11x17 scan, 450KB)
  • 51J-4 Schematic (GIF, 733KB)
  • 51J-4 Schematic (white on black) (PDF, 225KB)
• 51J-4 Receiver, 9th Edition (September 1961)
  Very late edition of the 51J-4 manual--may be the last.
  • 51J-4 Manual (9/61), Part 1, 200DPI (PDF, 2.9MB)
  • 51J-4 Manual (9/61), Part 2, 200DPI (PDF, 2.0MB)
  • 51J-4 Manual (9/61), Part 3, 200DPI (PDF, 4.5MB)
  • 51J-4 Schematic (9/61), 300DPI 11x17 (PDF, 0.4MB)
• Bill Kirkland's Notes on the 51J Gearbox
  • Bill's Notes, Rev 1, PDF
• Bill Kirkland's 51J Drum and Dial Decals
  • Bill's Artwork for the 51J KC Dial, PDF
  • Bill's Artwork for the 51J-3 Drum, PDF
• Tom Frobase's Solid-State Recitifier for the 51J Receivers
  • N3LLL's Notes on the 51J Solid State Rectifier Replacement

Collins 30J-Series Transmitters

Thanks much to Rod Perala for sharing these docs!

• Collins 30J-15 Transmitter Manual
• Collins 30J-18 Transmitter Manual
• Addendum 1 to Collins 30J-18 Transmitter Manual
• Addendum 2 to Collins 30J-18 Transmitter Manual
• Schematic for Collins 30J-18 Transmitter

30K-1 Transmitter

• Revision 2
  • 30K-1 Manual, Part 1 (200 DPI, PDF, 6MB)
  • 30K-1 Manual, Part 2 (200 DPI, PDF, 3.8MB)
  • 30K-1 Schematic, scan of Xerox (300DPI, PDF, 11X17 0.5MB)
• Revision 3
  • 30K-1 Manual, Part 1 (200 DPI, PDF, 3MB)
  • 30K-1 Manual, Part 2 (200 DPI, PDF, 3MB)
  • 30K-1 Schematic, scan of Xerox (300DPI, PDF, 11X17 0.6MB)
• Revision 4
  I have a full manual for this revision, but haven't yet scanned it for a stupid technical reason. Will get to it asap.
  • 310A-1 Schematic, (300 DPI, PDF, 0.25MB)

30K-5 Transmitter

• 30K-5 Manual December 1, 1955 (400 DPI, PDF, 57.0MB)

310B Exciters

• 310B-1/3
  • 310B-1/3 Manual (200 DPI, PDF, 3.0MB)
  • 310B-1/3 Schematic (300 DPI, 2pgs, 11x17, PDF, 0.8MB)

32RA Transmitters

• 32RA-7 Transmitter
  • 32RA Model 7 (32RA-7) Manual (200 DPI, PDF, 6.1MB)
  • 32RA Model 7 (32RA-7) Schematic (300 DPI, 11x17 PDF, 0.6MB)
• 32RA-8 Transmitter
  • 32RA Model 8 (32RA-8) Schematic (300 DPI, 11x17 PDF, 0.4MB)

32V Transmitters

• 32V-2 Transmitter
  • 32V-2 Manual, Part 1 (200 DPI, PDF, 2.8MB)
  • 32V-2 Manual, Part 2 (200 DPI, PDF, 3.2MB)
  • 32V-2 Schematic, (300DPI, PDF, 3x8.5x11 0.6MB)
  • 32V-2 Schematic, (300DPI, PDF, 2x11x17 0.9MB)
• 32V-3 Transmitter
  • 32V-3 Manual (dated 4/15/52), Part 1 (200 DPI, PDF, 4.7MB)
  • 32V-3 Manual (dated 4/15/52), Part 2 (200 DPI, PDF, 5.3MB)
  • 32V-3 Schematic (dated 4/15/52) (300 DPI, PDF, 3x8.5x11 0.9MB)
  • 32V-3 Schematic (dated 4/15/52) (300 DPI, PDF, 2x11x17 1.2MB)
  • 32V-3 Manual (dated 6/1/53) (300 DPI, PDF, 15.5MB)

75A Receivers

• 75A-2 Receiver
  • Full Manual for 75A-2 (400 DPI, PDF, 21MB)
  • Instruction Book for 75A-2 Filter Conversion Kit (200 DPI, PDF, 560KB)
  • Sam's Photofact for 75A-2 (300 DPI, PDF, 5.2MB)
  • Andrade & Pappenfus 1955 QST Article on Modifying the 75A-2/A-3 Receivers (200 DPI, PDF, 0.4MB)
• 75A-4 Receiver
  • Full Manual for late 75A-4 (3/15/65) (200 DPI, PDF, 4.9MB)
  • Late 75A-4 Schematic (3/15/65), multiple 8.5x11 pages (300 DPI, PDF, 0.5MB)
  • Late 75A-4 Schematic (3/15/65), 8.5x11+11x17 (300 DPI, PDF, 0.5MB)
  • 75A-4 Modifications for SAC Bulletin (200 DPI, PDF, 0.2MB)
  • 75A-4 Modifications for BuShips (with many thanks to Tom Clarke K4OKW!) (200 DPI, PDF, 0.8MB)
  • Scan of 75A-4 Front Panel (300 DPI, PDF, 2MB 11x17)
  • Scan of 75A-4 Front Panel (300 DPI, TIFF, 730KB, 11x17)

S-Line Equipment

The document "Discussion of Collins Developed Noise Blankers.." was kindly provided to me by Tom Anderson WW5L. Unfortunately it has no author or date. The copy I received wasn't that great, so I typed it up as an HTML and added the block diagram of the 136B in the appropriate place.

• 136B Noise Limiter
  • Discussion of Collins Developed Noise Blankers for the KWM-1, 75A-4, and 75S-1 Amateur Receivers
  • 136B Noise Blanker Manual (200 DPI, PDF, 2.3MB)
• 516F-2 Power Supply
  Rebuilding the Sarkes-Tarzian #50 Selenium Rectifier in the 516F-2 by Dave Tumey W5DT

62S-1 VHF Converter

• 62S-1 Manual, 3rd Ed. 8/15/63 (PDF, 23.3MB)

651S-1 Information

These service bulletins kindly provided by Marvin Moss:

• 651S-1 Service Bulletins (PDF, 13.2MB)

  Full manual:

• 651S-1 Manual, Part 1--Installation (PDF, 3.6MB)
• 651S-1 Manual, Part 1--Operation (PDF, 1.6MB)
• 651S-1 Manual, Part 1--Description and Principals of Operation (PDF, 15.1MB)
• 651S-1 Manual, Part 1--Maintenance (PDF, 12.1MB)
• 651S-1 Manual, Part 1--Schematics (PDF, 19.5MB)
• 651S-1 Manual, Part 2--Parts List (PDF, 55.3MB)

Collins Mechanical Filter Catalog

• Collins Bulletin 1031A, Mechanical Filters (200 DPI, Color PDF, 4.7MB)

Collins Quality Standards Manual

This manual was used internally at Collins Radio to specify the standards of workmanship to be used in their equipment. It contains all sorts of useful information including, but by no means limited to:

• Cable lacing techniques, and the "Collins knot"
• Fastener types and their proper use
• How to solder and weld
• How to read a huge variety of color coded components
• ...and much, much more.

The following 2-part scan includes pages 22/23, which were irritatingly missing from my eariler scan. Sorry about that!

• Collins Quality Manual, Part 1 (PDF, 200 DPI scan of Xerox original, 5.5 MB) Latest revision, Oct 1965
• Collins Quality Manual, Part 2 (PDF, 200 DPI scan of Xerox original, 3.8 MB) Latest revision, Oct 1965