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Re: More [message #31698 is a reply to message #31697]

Thu, 12 January 2006 10:13

PakProtector
Messages: 935
Registered: May 2009

Illuminati (2nd Degree)

I have not breadboarded it. The g2 dropping R will get set 'in-circuit'. 150R CC resistors for g2 stopers would probably be a good idea.

On idle current, plan on putting the plate V about half way between B+ and g2(maybe a bit closer to g2 ). I'd use an adjustable R-set for the cathode CCS, it makes covering for other parameter drifts and variations easier.

I have some coax that makes nice capacitors in the few pF range. TFE insulation andeverything. Probably going to take 12 cm of it. I also neglected Cw of the choke, and may have droped a zero in the calculation.
cheers,
Douglas

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[Message index]

		PP 2A3 intro By: PakProtector on Wed, 11 January 2006 09:40
		Re: PP 2A3 intro By: Wayne Parham on Wed, 11 January 2006 10:55
		Re: PP 2A3 intro By: Manualblock on Wed, 11 January 2006 13:40
		More By: PakProtector on Wed, 11 January 2006 14:49
		Re: More By: Damir on Thu, 12 January 2006 09:26
		Re: More By: PakProtector on Thu, 12 January 2006 10:13
		Re: More By: Damir on Fri, 13 January 2006 11:17
		front end gain By: PakProtector on Fri, 13 January 2006 15:30
		More front end tubes By: PakProtector on Fri, 13 January 2006 18:40
		and further fun... By: PakProtector on Mon, 16 January 2006 10:00
		Looks Great ! By: MRCLASSICMAN on Thu, 12 January 2006 10:15

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