Valkyrie.... line-stage preamp..... info??

redrabbit · 6th May 2007, 09:55 PM

Anyone have links for this preamp?
I have built Jung's AD744/AD811 circuit found on his pages, but I wonder how this Valkyrie differs ?
The only info I've found is to order backissues from AudioXpress.
It was a project published there.

Quote:

Valkyrie. A line-stage preamplifier. Utilizes high-performance op amps in the signal path. Provides a modest voltage gain of about 5 (14dB), but can be increased.
AUDIO AMATEUR 1/1994 [Mar 1994] (v.25#1) pg. 10
Correction AUDIO AMATEUR 3/1994 [Sep 1994] (v.25#3) pg. 42
Added Info AUDIO AMATEUR 3/1994 [Sep 1994] (v.25#3) pg. 45
Correction AUDIO AMATEUR 2/1995 [Jun 1995] (v.26#2) pg. 45
Added Info AUDIO ELECTRONICS 3/1999 [Jun 1999] (v.30#3) pg.39

=RR=

Gordy · 28th June 2007, 10:10 AM

Anyone?

Mikett · 28th June 2007, 02:05 PM

It is the essentially the same circuit. The Valkyrie adds buffers to the tape outputs etc and is not dual mono.

Gordy · 29th June 2007, 11:27 AM

OK.
Many thanks.

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28th June 2007, 10:10 AM	#2
Gordy diyAudio Member Join Date: Nov 2006	Anyone?

28th June 2007, 02:05 PM	#3
Mikett diyAudio Member Join Date: Aug 2003 Location: Toronto	Valkyrie It is the essentially the same circuit. The Valkyrie adds buffers to the tape outputs etc and is not dual mono.

29th June 2007, 11:27 AM	#4
Gordy diyAudio Member Join Date: Nov 2006	OK. Many thanks.