- 1. [Amps] arrrrgggg!! (score: 1)
- Author: "Carey Lockhart, KC5GTT" <kc5gtt@gmail.com>
- Date: Sun, 22 May 2011 22:19:12 -0500
- ok guys i have the amp back together in the yu1aw lazy builder. now i am getting much lower efficent plate 3400 full load current 1.2a drive 100w output according to my cheap meter 1600 and my other
- /archives//html/Amps/2011-05/msg00197.html (6,520 bytes)
- 2. Re: [Amps] arrrrgggg!! (score: 1)
- Author: TexasRF@aol.com
- Date: Mon, 23 May 2011 08:16:58 EDT
- Hi Carey, flapper tuning is the best (maybe only) method for resonating a strip line plate circuit. There are always losses in these circuits due to unavoidable resistance in the metal parts and rf c
- /archives//html/Amps/2011-05/msg00198.html (8,304 bytes)
- 3. Re: [Amps] arrrrgggg!! (score: 1)
- Author: "Carl" <km1h@jeremy.mv.com>
- Date: Mon, 23 May 2011 09:16:24 -0400
- Its not the only method Gerald, I use a small vacuum variable; never did care for the mechanical problems of a flapper. Im also using the split line tank. Carl KM1H __________________________________
- /archives//html/Amps/2011-05/msg00199.html (6,962 bytes)
- 4. Re: [Amps] arrrrgggg!! (score: 1)
- Author: Steve Thompson <g8gsq72@gmail.com>
- Date: Mon, 23 May 2011 17:22:36 +0100
- I think Carey said he was using the YU1AW 'lazy builder' circuit. That's not the usual resonant stripline with capacitive coupling design. Visualising it on Smith chart is the easiest way for me to
- /archives//html/Amps/2011-05/msg00201.html (7,572 bytes)
- 5. Re: [Amps] arrrrgggg!! (score: 1)
- Author: N1BUG <paul@n1bug.com>
- Date: Mon, 23 May 2011 19:14:28 -0400
- Yes, and it was tuned with a vacuum variable. The output coupling was a flapper. I often regretted parting with that amp, as it was in many respects better than what succeeded it. 73, Paul N1BUG ___
- /archives//html/Amps/2011-05/msg00204.html (7,511 bytes)
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