Diff: Dorrough Electronics
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Newer page: | version 28 | Last edited on 3 May 2024 3:17 | by harold | Revert |
Older page: | version 27 | Last edited on 3 May 2024 3:16 | by harold | Revert |
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* [Instruction Manual Digital Loudness Meters Models 280 & 380 (Digital Reading Meters)|Upload:harold/Tech Man 280-380 Digital-92--8a-.pdf]
+* [[Upload:harold/Schem PCB 155-385--92--9a-.pdf]]
version 28
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 Peak Hold Circuit PC Board 110-404-
- Revised Meter Calibration Procedure (Series-1 Only!)
- Schematic For PC Board 154-383-
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