The Amateur Service Agency Bulletins introduced “a procedure for advising all Collins Authorized Amateur Service agencies of modification data, servicing techniques and any other pertinent information to better enable the service agency to repair and test Collins-built amateur equipment.” Read bulletin #1001 to get a better understanding of how Collins used these bulletins. Viewing and printing of CCA Portable Document Format (.pdf) files requires that you obtain and install Acrobat Reader from Adobe, Inc. Acrobat Reader can be downloaded for FREE via Adobe’s web site. Once you’ve downloaded and installed Acrobat Reader, you can click on any of the CCA’s .pdf file links below to view, save or print the document. The following Collins Amateur Service Agency Bulletins were digitized by the Collins Collectors Association with permission of Rockwell Collins. These files are the property of the CCA and can be downloaded for private use only. Any copying, redistribution, or publication without written permission of the CCA and Rockwell Collins is prohibited. These files are digitally protected.
ASAB # EQUIPMENT TYPE DATE DESCRIPTION
1001 NONE 05/11/60 General Information Amateur Service Agency Bulletins
1002 KWM-2/2A 08/01/60 Audio Squeal in Transmit When AF Control is Advanced
1003 KWM-2/2A 08/02/60 Trouble Shooting Aids
1004 KWM-2/2A 08/03/60 Information
75S-1/2
1005 KWM-2/2A 12/23/60 Service Information
75S-1/2
30S-1
136B-2
1006 KWM-2/2A 05/12/61 Service Information
1007 KWM-2/2A A. Main Tuning Dial Assembly and Repair
32S-1/2 B. PTO to Tuning Dial Alignment
75S-1/2
312B-5
1008 30L-1 02/12/62 Production Changes
1009 KWM-2/2A 07/03/62 Information
32S-1/2
1010 516F-2 11/16/62 A. Bias Diode Change and Capacitor Change
B. Bias Voltage Range Increase
C. Check Wiring of Fuse F1
1011 KWM-2/2A 06/26/63 Main Tuning Dial Assembly and Associated Parts
32S-1/2/3
62S-1
75S-1/2/3/3A
312B-5
399C-1
1012 30S-1 10/10/63 Intermittent Dropout of Plate Overload Relay
Revised
11/20/63
1013 KWM-2/2A 03/18/64 Noise Activation of AGC System
1014 KWM-2/2A 05/31/65 Main Tuning Dial Assembly and Associated Parts
32S-1/2/3
51S-1/1A/1AF/1F
62S-1
75S-1/2/3/3A
312B-5
399C-1
1015 30S-1 07/30/65 1. Cabinet Vibration Elimination
2. Excessive ALC Control
1016 KWM-2/2A 10/12/65 A. Crystal Calibration
B. “Yelp” Problem
C. Reduce Low-Frequency Spurious
D. High-Frequency Tweets
E. Eliminate 0.455 KC Signal Bypassing Transmit Mixer
F. Improve Carrier Balance
1017 32S-3 10/16/65 1. 80-Meter Spurious Reduction
2. Updated Balanced Modulator