Welcome to this little "experiment" in Internet publishing. The documents available here are only the tip of the iceberg for what may become a more comprehensive technical resource for amateur radio. These items are free and for your own use in the enjoyment of the hobby. I would be grateful for any input you might have or suggestions for future items. I am especially interested in how the file transfer goes and how well the document prints/views at your QTH.
To download a document, simply click on the PDF icon or the link. You will need Adobe Acrobat to view the downloaded file. Acrobat Reader is available for the PC or the Mac. If you do not have it, you can download it free from Adobe by clicking on the Acrobat Reader logo below. You can print the documents on your laser or ink-jet printer for more convenient use in the shop.
73 de KK5IM
Collins 516F-2 Power Supply Schematic
Collins 516F-1 Power Supply Schematic
Collins S-Line Power Plugs
Universal Transformer Company 1952 Tech Sheet
Wiring Mike Plugs for Collins S-Line Equipment
Collins S-Line Crystal Socket Diagram
Collins 516F-2 Test Set
25 Pair M-Block Terminal Connections
Helpful Mechanical Data Reference Cards #1
Collins 75A-4 RF Gain Variance
Station Configuration for S-Line Equipment
Station Configuration for A-Line Equipment
These documents may contain Rockwell Collins, Inc. copyrighted information, trademarks or logotypes and are reproduced herein under license from and with the permission of Rockwell Collins, Inc.
A one page Data Sheet containing the schematic diagram for the S-Line power supply. Original document dated February 1968.
Download the schematic. 28kb: 516F2.pdf
A one page Data Sheet containing the schematic diagram for the KWM-1 power supply. Original document dated January 1958.
Download the schematic. 39kb: 516F1.pdf
This one page data sheet contains pin-out diagrams for the Collins 516F-2 power supply used for 32S-() transmitters and KWM-2/2A transceivers. Useful for troubleshooting or making new cables. Important revision: 11/14/00.
Download the diagrams. 16kb: collinsplugs.pdf
This four page tech sheet lists terminal arrangements for UTC audio transfomers. Included in this circa 1962 document are the following types: A, HA, HC, HP, LS and O.
Download the Tech Sheet. 224kb: UTC.pdf
This one page data sheet contains diagrams for wiring the PJ-068 mike plug for Astatic G-Stands, Shure 55 and 55S and Electro-Voice 664 mikes for the KWM-2/2A and 32S-() transmitters. Revised: June 25, 2001.
Download the diagram. 48kb: mikeplugs.pdf
A helpful pictorial illustration which shows the high frequency oscillator crystals by frequency, deck location and operating frequency. Used in the 75S-() receiver, 32S-() transmitter and KWM-2/2A transceiver.
Download the drawing. 8kb: xtalsocket.pdf
Bud Whitney, K7RMT, uses a set like this one to provide a one-shot meter analysis of 516F-2 power supplies. This six-meter test set can be wired in series with the power supply and a 32S-() transmitter or KWM-2/2A transceiver. It is a very handy tool if you work on a lot of power supplies. Thanks to K0BS for input as well.
Download the diagram. 12kb: testmeters.pdf
Ever wonder how the Telephone Man connected all those different colored wires? Here is a color diagram which shows you where to "punch down" a 25 paid cable on an M-Block. A color printer is required. Take it to Kinko's and have it laminated!
Download the drawing. 5kb: mblock.pdf
These four data cards contain helpful mechanical data for use in the shop or to keep in your tool box. Included are Common Hex Wrench sizes with nut driver color codes, Drill Bit Sizes for Common Threads, ASME Bolt Grades and a list of US AM Broadcast Frequency Assignments (not mechanical but it is on this sheet anyway). A color printer is required. Kinko's will laminate the cards for you.
Download the drawing. 9kb: mechdat1.pdf
The RF gain control circuit of 75A-4 receivers manufactured after February 1957 was modified to make use of the unused half of V19 to decouple the RF GAIN control (R99) from the AVC line. This tech sheet shows the two different schematics of the RF GAIN circuit around V19.
Download the drawing. 16kb: V19.pdf
I have drawn this pictorial layout of furniture I plan to build to hold my S-Line collection. It is based on the furniture I now have in my shack. Access to the rear of the equipment is very important so this structure is designed to be located 24 inches away from the wall.
Download the drawing. 20kb: sline.pdf
Here is a drawing I made of a proposed furniture system for A-Line gear. Since woodworking is one of my other principal interests, I really enjoy designing and building stuff like this.
Download the drawing. 36kb: aline.pdf
This page created on December 11, 1999
Last Revision: June 26, 2001