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1. [Amps] SB-220 (score: 1): Author: "kwasny" <kwasny@netzero.net>; Date: Mon, 1 Nov 2004 19:50:45 -0500; I smoked one of 1mH chokes on my sb-220. Also saw some arcing around the meter area. I am going to replace the chokes with resisters. Have to replace one of the 220pF caps that got smoked up. Does an; /archives//html/Amps/2004-11/msg00010.html (6,361 bytes)
2. Re: [Amps] SB-220 (score: 1): Author: "kwasny" <kwasny@netzero.net>; Date: Wed, 3 Nov 2004 11:01:32 -0500; Thanks to all that replied. I am being very cautious before applying power to the amp again. I have looked all over the meter area, the band switch area and everything else in that area can cannot f; /archives//html/Amps/2004-11/msg00032.html (9,407 bytes)
3. Re: [Amps] SB-220 (score: 1): Author: "kwasny" <kwasny@netzero.net>; Date: Wed, 3 Nov 2004 12:32:37 -0500; Richard, How do I go about getting these parasitic mods an instructions from you? I hate to use the smoke test to find where it arced but I will power it up without the first and if that goes well wi; /archives//html/Amps/2004-11/msg00036.html (10,532 bytes)
4. [Amps] .82 ohm (score: 1): Author: "kwasny" <kwasny@netzero.net>; Date: Mon, 6 Dec 2004 09:02:43 -0500; I have been working on my SB-220 which had a parasitic oscillation. I have installed the parasitic oscillation kit but stilll have not been able to find a 2 watt .82 ohm resister which blew. Where ca; /archives//html/Amps/2004-12/msg00110.html (7,070 bytes)
5. Re: RE : [Amps] .82 ohm (score: 1): Author: "kwasny" <kwasny@netzero.net>; Date: Tue, 7 Dec 2004 10:24:16 -0500; How would one determine if the grid current is being exceded? I have no doubt that is was caused the problem with my SB-220 in the first place. I inadvertently drove it at full output from my exciter; /archives//html/Amps/2004-12/msg00120.html (9,008 bytes)
6. Re: RE : [Amps] .82 ohm (score: 1): Author: "kwasny" <kwasny@netzero.net>; Date: Tue, 7 Dec 2004 14:35:29 -0500; Yes, there were some other forces at work, I seems that there was a parasitic oscilation as one of the 1mH chokes smoked. I have installed the parasitic kit from Rich and replaced the Zener with seve; /archives//html/Amps/2004-12/msg00125.html (10,825 bytes)
7. Re: RE : [Amps] .82 ohm (score: 1): Author: "kwasny" <kwasny@netzero.net>; Date: Wed, 8 Dec 2004 16:52:59 -0500; I considered but did not want to garbage it up to bad but considering the availability of .82 ohm I think that I will use the 12x10 ohms. Darryl - K5WAS with a would be .83 ohms. That would be within; /archives//html/Amps/2004-12/msg00136.html (7,505 bytes)
8. Re: RE : [Amps] .82 ohm (score: 1): Author: "kwasny" <kwasny@netzero.net>; Date: Fri, 10 Dec 2004 15:25:09 -0500; Rich, Thanks for the information on the phone this morning. I would appreciate if you would send me 2 .82 ohm 2 watt resisters. I am providing the right zip code this time :-) Please send to: Darryl; /archives//html/Amps/2004-12/msg00165.html (8,293 bytes)
9. [Amps] Tuning (score: 1): Author: "kwasny" <kwasny@netzero.net>; Date: Wed, 22 Dec 2004 09:56:01 -0500; Hi, I have a question that I have never seen the answer to in any amp manuals. After tuning the amp, how far up or down in frequency can you move without retuning the amplifer? Rich, Thanks for the r; /archives//html/Amps/2004-12/msg00255.html (6,873 bytes)
10. Re: [Amps] Tuning (score: 1): Author: "kwasny" <kwasny@netzero.net>; Date: Thu, 23 Dec 2004 05:36:19 -0500; Thanks to all that replied to the tuning question. It seems that there is no definitive answer. I guess to protect the amplifier it is best to re-tune when ever the frequency is changed more than a f; /archives//html/Amps/2004-12/msg00279.html (9,522 bytes)

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