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Re: More [message #31697 is a reply to message #31696]

Thu, 12 January 2006 09:26

Damir
Messages: 1005
Registered: May 2009

Illuminati (2nd Degree)

A few more details, please - what`s the Ia and Ig2 per 12BY7, (and CCS current - the sum of this, x 2 tubes). Then, Rg2 value, Rg2=((B+)-90)/Ig2.
Did you "breadbord" it and your comments about sound (possible comparisons with "Merlin"?). I noticed that you didn`t use "stoppers" on g2 and 2A3 input - not necessary?
For HV 15pF cap - maybe three 47pF in series (standard value)?
And 23kHz (w/o 15pF caps) means "lot" of Cw (with Zout~10k of the driver)?

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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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