- 1. [Amps] SB-220 diode failure (score: 1)
- Author: John <w4kv@arrl.net>
- Date: Tue, 09 Aug 2005 14:28:41 -0400
- Mike-- Thanks for your comments. If it isn't too much trouble, do let me know the design of the bias supply board you mention. My inclination is to go ahead and get the Harbach board, since several o
- /archives//html/Amps/2005-08/msg00348.html (6,758 bytes)
- 2. [Amps] more sb220 questions (score: 1)
- Author: John <w4kv@arrl.net>
- Date: Tue, 30 Aug 2005 14:56:34 -0400
- I have this highly modified sb-220 that I bought several years ago. Please take a look and make any suggestions. http://www.geocities.com/w4kv/sb220 Thanks John w4kv _________________________________
- /archives//html/Amps/2005-08/msg00761.html (6,187 bytes)
- 3. [Amps] more sb220 questions (score: 1)
- Author: John <w4kv@arrl.net>
- Date: Wed, 31 Aug 2005 14:02:41 -0400
- I never got any power out at all. No noise, either, except for the fan increasing rpm. I'm already moving toward restoration of the amp to a condition closer to the original kit. Any other suggestion
- /archives//html/Amps/2005-08/msg00781.html (6,567 bytes)
- 4. [Amps] Alpha releases New Amp 9500 (score: 1)
- Author: John <w4kv@arrl.net>
- Date: Fri, 16 Sep 2005 11:59:24 -0400
- I emailed Alpha about 6 months ago about the 87A and suggested that the serial port is essentially obsolete and should be replaced with a more up-to-date port. The reply was "Thank you for your input
- /archives//html/Amps/2005-09/msg00145.html (6,930 bytes)
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