tube amp design -- new Glass Audio

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2 total messages Started by John A. Shriver Mon, 25 Jan 1993 15:48

#2428

Author: John A. Shriver
Date: Mon, 25 Jan 1993 15:48

21 lines
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The latest Glass Audio (1/93) has an excellent article by Andrew Nehan
on a 40W triode amplifier.  The excellence is in that it talks a LOT
about the design decisions, and why things are done certain ways.
Much better than Joe Curcio, who may have excellent designs, but is
almost as cagey as Dave Hafler was about not explaining his designs
too well.  (Can't give away the secrets!)

The monoblock amp uses 6 6550's for 40 Class A triode watts.  The
input is based on the Hedge long-tailed cascode pair (like the
Curcio), but with cathode followers added to drive the capacitance of
3 triode-connected 6550 grids.  The current source designs are better
than Curcio's, and he shows how to use a current source to make the
cathode followers linear.  

Definitely must reading for tube amplifier homebrewers.  Well written,
well edited, with logical and readable schematics.  Just about on a
par with a good Crowhurst article.

If you had given up on Glass Audio due to the rather spotty editorial
content (ancient articles, inscrutable schematics, bad writing) in
1992, this article alone is worth the $20 a year.

Re: tube amp design -- new Glass Audio

#2452

Author: Georg RUPPERT (DIBAG)
Date: Tue, 26 Jan 1993 16:25

24 lines
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John A. Shriver (jas@proteon.com) wrote:
: .....
: Definitely must reading for tube amplifier homebrewers.  Well written,
: well edited, with logical and readable schematics.  Just about on a
: par with a good Crowhurst article.
: 
: If you had given up on Glass Audio due to the rather spotty editorial
: content (ancient articles, inscrutable schematics, bad writing) in
: 1992, this article alone is worth the $20 a year.
: 

As being from Austria, Europe, I have never heard anything about this
magazine. Could you give me information about subscription, please?

Regrets,
Georg.

[Post it. -tjk]

-----
Georg RUPPERT                         | e-mail: rup@piis10.joanneum.ac.at
Institute for Digital Image           |         
Processing                            | phone:  (++43/316) 8020-755
JOANNEUM RESEARCH GRAZ /  AUSTRIA     | fax:    (++43/316) 8020-720

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