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Total 4 documents matching your query.

1. [Amps] SB-220 load capacitor question (score: 1): Author: <johna8119-amps@yahoo.com>; Date: Wed, 9 Nov 2005 18:09:46 -0800 (PST); I should probably be ashamed to ask this. I have this SB-220 that I have been unmodifying, and I have run into a situation that I am wondering about. When I tune this rig up, with excitor power anywh; /archives//html/Amps/2005-11/msg00124.html (7,152 bytes)
2. Re: [Amps] SB-220 load capacitor question (score: 1): Author: <johna8119-amps@yahoo.com>; Date: Thu, 10 Nov 2005 10:15:25 -0800 (PST); I had previously checked the dummy load with DMM (47.8 ohms) and with a MFJ 239 SWR meter (50 ohms and 1:1 swr). There is no change with switching the bandswitch. I have polished the contacts with a; /archives//html/Amps/2005-11/msg00126.html (9,717 bytes)
3. Re: [Amps] SB-220 load capacitor question (score: 1): Author: Colin Lamb <k7fm@teleport.com>; Date: Thu, 10 Nov 2005 10:56:25 -0800 (GMT-08:00); The pi-network is really a transformer. So, a change in the output capacitance could be based upon a change in the input characteristics as well as the load. Is the voltage correct? Are both tubes th; /archives//html/Amps/2005-11/msg00127.html (11,338 bytes)
4. Re: [Amps] SB-220 load capacitor question (score: 1): Author: "Dr. William J. Schmidt, II" <bill@wjschmidt.com>; Date: Thu, 10 Nov 2005 21:32:43 -0600; You might also clean the contacts on the TR relay... that could do it too... Sincerely, Dr. William J. Schmidt, II K9HZ Trustee of the North American QRO - Central Division Club - K9ZC Email: bill@wj; /archives//html/Amps/2005-11/msg00136.html (11,499 bytes)

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