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when I started building amps

100.16.160.116
Posted on September 22, 2016 at 09:26:56
elblanco
Audiophile

Posts: 3486
Joined: August 20, 2004
 35 years ago, my dad gave me this article. I still read it when I need a dose of reality. Nobody could explain like Crowhurst. This may be of use to some.

 

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RE: when I started building amps, posted on September 22, 2016 at 10:07:56
vinnie2
Audiophile

Posts: 4481
Location: North Carolina
Joined: September 28, 2013
 Thanks for the link. I like his stuff too, but never ran across this one before. Do you have links for the other articles he mentioned?

 

link to part 3, posted on September 22, 2016 at 10:33:42
vinnie2
Audiophile

Posts: 4481
Location: North Carolina
Joined: September 28, 2013
 this is all I have found so far

 

RE: when I started building amps, posted on September 22, 2016 at 10:39:41
elblanco
Audiophile

Posts: 3486
Joined: August 20, 2004
 part 2

 

another very good link to tube articles, posted on September 22, 2016 at 10:49:30
vinnie2
Audiophile

Posts: 4481
Location: North Carolina
Joined: September 28, 2013
 nt

 

Good stuff, written in the heyday of audio tubes. (n/t), posted on September 22, 2016 at 17:33:43
FenderLover
 mt

 

There are Six Parts to This Title , posted on September 22, 2016 at 21:11:51
Triode_Kingdom
Audiophile

Posts: 10049
Location: Central Texas
Joined: September 24, 2006
 "Designing Your Own Amplifier"

Part 1: Voltage Amplifier Stages
Part 2: The Power Stage
Part 3: Phase Inverters
Part 4a: Push-Pull Power Stages
Part 4b: Push-Pull Power Stages
Part 5: Feedback Amplifiers

There are other Crowhurst titles online in PDF, too:

"Practical Audio Design"

Part 1: Power Transformers and Rectifiers
Part 2: Power-Supply Filters
Part 3: Decoupling Networks and Voltage Regulation

"Audio Handbook No. I" (61 pages in four PDF files)

I have all of these, but don't remember now where I found them. As noted in the PEARL archive, there are many more. I'd love to have them, but don't know if they're available online. Maybe a Google search of the non-active titles in the PEARL list would locate the stragglers.


 

RE: There are Six Parts to This Title , posted on September 23, 2016 at 03:33:38
vinnie2
Audiophile

Posts: 4481
Location: North Carolina
Joined: September 28, 2013
 I have been looking and only found #3 and the pearl list. Please let us know if you find them.

 

RE: when I started building amps, posted on September 23, 2016 at 04:59:14
elblanco
Audiophile

Posts: 3486
Joined: August 20, 2004
 .

 

RE: when I started building amps, posted on September 23, 2016 at 05:04:45
elblanco
Audiophile

Posts: 3486
Joined: August 20, 2004
 h

 

Audio Handbook No. I, posted on September 23, 2016 at 07:49:16
Triode_Kingdom
Audiophile

Posts: 10049
Location: Central Texas
Joined: September 24, 2006
 Here's one of the titles I mentioned. I'll search for the others as time permits.




 

Possible Audio Classroom Source, posted on September 23, 2016 at 08:04:20
Triode_Kingdom
Audiophile

Posts: 10049
Location: Central Texas
Joined: September 24, 2006
 The Crowhurst Audio Classroom series was probably posted at AudioXpress at one time. It doesn't seem to be there now, but there's a note at the bottom of their page of articles -

"To request materials from 2007 and beyond, please contact customer service. custserv@audioxpress.com"

It would be worth your time to contact them if nothing else turns up.

I'll keep looking...

EDIT: Another lead is Glass Audio. Maybe that's where I got them originally. Just not sure now.

 

A General VT Reference, posted on September 23, 2016 at 08:36:30
Triode_Kingdom
Audiophile

Posts: 10049
Location: Central Texas
Joined: September 24, 2006
 Here's an excellent general reference regarding vacuum tubes. It includes a glossary near the end with definitions; very useful for discussing VTs in online forums. ;)

 

Yes, Glass Audio, posted on September 23, 2016 at 12:04:50
thermionic addictions
Audiophile

Posts: 894
Joined: June 16, 2006
 Glass Audio ran these, one article per issue, starting in the June '99 issue
and ending in the June '00 issue.

Cal

 

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