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patience... [message #31727 is a reply to message #31721]

Thu, 26 January 2006 18:18

PakProtector
Messages: 935
Registered: May 2009

Illuminati (2nd Degree)

Hey-Hey!!!,
This amp is not all that hard. A volt meter will be all that's required to build the first one. You'll need to be able to adjust bias and adjust the front end g2 voltage with a resistor swap if you don't guess well. A measurement of the neutralization caps would be nice, but I'll offer some TFE insulated coax I have some experience with to anybody who wants to build.

I am going to lay it out, and drill most of the holes, but my wife is going to do the rest. There isn't too much that I or somebody else on the forum can't answer as far as detailed questions go. troubleshooting isn't going to be an issue for some complex NFB compensation issue because there isn't any in Galahad. It's all open loop. Which is why I specified 6k6 instead of 5k a-a load. Slightly better damping from the bigger a-a load.
cheers,
Douglas

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[Message index]

		Bias supply By: PakProtector on Sat, 21 January 2006 06:30
		the Schematic By: PakProtector on Tue, 24 January 2006 09:55
		Re: the Schematic By: Damir on Tue, 24 January 2006 15:21
		Re: the Schematic By: 2wo on Tue, 24 January 2006 16:36
		Re: the Schematic By: PakProtector on Tue, 24 January 2006 17:03
		Re: Bias supply By: Manualblock on Wed, 25 January 2006 10:01
		Re: Bias supply By: Damir on Wed, 25 January 2006 13:49
		Re: Bias supply By: Manualblock on Wed, 25 January 2006 16:11
		Re: Bias supply By: Damir on Wed, 25 January 2006 23:28
		Re: Bias supply By: Manualblock on Thu, 26 January 2006 07:59
		Re: Bias supply By: Damir on Thu, 26 January 2006 11:17
		Re: Bias supply By: Manualblock on Thu, 26 January 2006 12:40
		Re: Bias supply By: Damir on Thu, 26 January 2006 13:04
		Re: Bias supply By: Manualblock on Thu, 26 January 2006 15:03
		Should you consider Anything involving high voltages novice work? By: Old Brown Eyes on Thu, 26 January 2006 13:14
		Re: Should you consider Anything involving high voltages novice work? By: Manualblock on Thu, 26 January 2006 15:02
		Latest Seth schematic By: Old Brown Eyes on Fri, 27 January 2006 05:55
		Re: Latest Seth schematic By: PakProtector on Fri, 27 January 2006 09:19
		Re: Latest Seth schematic By: Manualblock on Fri, 27 January 2006 09:22
		yes it does... By: PakProtector on Fri, 27 January 2006 13:30
		Re: yes it does... By: Jeff Lessard on Tue, 31 January 2006 12:53
		Re: yes it does... By: PakProtector on Tue, 31 January 2006 16:47
		Re: Should you consider Anything involving high voltages novice work? By: PakProtector on Thu, 26 January 2006 18:08
		patience... By: PakProtector on Thu, 26 January 2006 18:18
		Re: patience... By: Manualblock on Thu, 26 January 2006 20:56
		Galahad Amp By: Wayne Parham on Fri, 27 January 2006 09:11
		Re: Galahad Amp By: Manualblock on Fri, 27 January 2006 09:22
		Re: Galahad Amp By: PakProtector on Fri, 27 January 2006 09:27
		Re: Galahad Amp By: Wayne Parham on Fri, 27 January 2006 10:37
		Re: Bias supply By: 2wo on Sun, 29 January 2006 18:22
		ooooohhhh! neat By: PakProtector on Tue, 31 January 2006 17:13
		simple circuits By: PakProtector on Wed, 01 February 2006 17:42
		MOSFET D-S voltage By: PakProtector on Wed, 25 January 2006 14:42

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