Dorrough Electronics
Note: You are viewing an old revision of this page. View the current version.
Dorrough Electronics
http://www.dorrough.com - Dorrough website.
https://www.dorrough.com/Usermanuals2.html - Manual archive.
Dorrough Legacy Product Documentation
40-A Loudness Monitor.
40-A Tech Manual - Also covers 40-B, 10-A(B), 12-A(B), 20-A(B), 21-A(B)
1200 Stereo Test Set.
DAP310 Discriminate Audio Processor. 1973
Power Supply Update replaces diode reference with single chip regulator.
1977 Manual, scanned by Mike Phillips. 16MB
1978 Manual
DAP610 Discriminate Audio Processor. 1982
"
Image from WA3VJB.
Full Size
Schematic PC Board #111-404-
Schematic PC Board #111-404-
Back to HomePage
Contribute Documents?