From david_harri–(at)–oteserv.dodge.com Thu Nov 2 10:54:02 CST 1995
Article: 2881 of rec.audio.tubes
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From: david_harri–(at)–oteserv.dodge.com
Newsgroups: rec.audio.tubes
Subject: Re: Info on building output transformers?
Date: Wed, 01 Nov 1995 20:01:22 GMT
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SOME BOOKS AND ARTICLES ABOUT TRANSFORMERS

BOOKS

Title: Coil Design and Instruction Manual
Author: B. B. Babani
ISNB: 0-85934-050-3
Bindery: Paperback
Pages: 106
Source: Electronic Technology Today, Inc.
P.O. Box 240
Massapequa, NY 11762-0240
USA

Title: Practical Transformer Design
Author: Eric Lowdon
ISBN: 0-8306-3212-3
Bindery: Hardbound
Pages: 389
Comments: Very comprehensive.
Source: Opamp Technical Books, Inc.
1033 N. Sycamore Ave.
Los Angeles, CA 90038
USA

Phone: (800) 468-4322

Title: Audio Transformer Design Manual
Author: Robert G. Wolpert
ISBN: None
Bindery: GBC
Pages: 108
Source: Angela Instruments
10830 Guilford Road
Suite 309
Annapolis Junction, MD 20701
USA

Phone: (301) 725-0451

Title: Radiotron Designer’s Handbook, 4th Ed.
ISBN: None
Bindery: Hardbound
Pages: >1400 (?)
Source: Out of print. Angela Instruments (above)
may have a copy.
Comment: The subject of the fifth chapter is
transformers.

ARTICLES

Title: Save Those Defective Transformers
Magazine: Popular Electronics
Issue: April 1955
Page: 19
Comments: The cover story of this issue
is a Theremin project.
Source: Libraries, used-book stores, ham fests, etc.

Title: Winding Your Own Output Transformers
Magazine: Popular Electronics
Issue: September 1970
Page: 78
Author: Ed Francis
Source: Libraries, used-book stores, ham fests, etc.

Title: Transformers, Part 1 of 3
Magazine: Vintage Guitar Magazine
Issue: February 1995
Page: ?
Author: Gerald Weber
Comment: An overview of output transformers.
Source: Vintage Guitar, Inc.
P.O. Box 7301
Bismarck, ND 58507
USA

Phone: (800) 844-1197
e-mail: vguita–(at)–guitar.com
Web: http://www.vguitar.com/vintageguitar.html/

Title: Transformers, Part 2 of 3
Magazine: Vintage Guitar Magazine
Issue: Marc+h 1995
Page: ?
Author: Gerald Weber
Comment: An overview of power transformers.
Source: See above.

Title: Transformers, Part 3 of 3
Magazine: Vintage Guitar Magazine
Issue: April 1995
Page: ?
Author: Gerald Weber
Comment: An overview of reverb and interstage transformers.
Source: See above.

Title: Transformer Hunting
Magazine: Glass Audio
Issue: Vol. 1, No. 2, 1989
Page: 24
Author: Norman Crowhurst
Source: Glass Audio
P.O. Box 176
Peterborough, NH 03458
USA

Phone: (603) 924-9467

Title: How Audio Transformers Work
Magazine: Glass Audio
Issue: Vol. 4, No. 1, 1992
Page: 12
Author: Norman Crowhurst
Source: See above.

Title: Electrical Adjustment in Fitting
a New Output Transformer
Magazine: Glass Audio
Issue: Vol. 4, No. 2, 1992
Page: 19
Author: Norman Crowhurst
Source: See above.

Title: Output Transformers, Part I
Magazine: Glass Audio
Issue: Vol. 6, No. 2, 1994
Page: 24
Author: James Moir
Source: See above.

Title: Output Transformers, Part II
Magazine: Glass Audio
Issue: Vol. 6, No. 3, 1994
Page: 30
Author: James Moir
Source: See above.

Title: Quick, Simple Output Transformer Tests
Magazine: Glass Audio
Issue: Vol. 7, No. 1, 1995
Page: 24
Author: Rickard Berglund
Source: See above.

From Magne–(at)–mni.voicenet.com Thu Nov 2 10:55:08 CST 1995
Article: 2886 of rec.audio.tubes
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From: Magne–(at)–mni.voicenet.com (Michael S. LaFevre)
Newsgroups: rec.audio.tubes
Subject: Re: Info on building output transformers?
Date: Tue, 31 Oct 1995 22:25:50 -0500
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Excellent job done by Mr. Harris in providing many valuable resources for
transformer knowledge. Thought I might add one or two additions to his
already excellent list.

Electronic Transformers and Circuits
Third Edition

Reuben Lee, Leo Wilson, and Charles E. Carter

John Wiley & Sons, Inc.
605 Third Avenue
NY, NY 10158-0012

ISBN #0-471-81976-X

This is an excellent reference book…written by one of the masters. The
orig manuscript was published in 1947 and is “collectible” amongst tranney
enthusiasts (yeah…I know there’s only a few of us!).

Norman Crowhurst wrote a ton of books and articles…anything by this guy
is really top flight. His books of nomographs are especially useful.
Check these out and send me your duplicates .

On a slightly off topic note….wonder how difficult it would be to write
computer programs that would replicate the nomographs that Crowhurst (and
other authors) did many years ago. Be neat to just punch in the necessary
variables and let the computer rip through the problem in two seconds
flat.

Mike LaFevre

 

Buy the Book!

I cleaned up my tab for Sonny Boy's Help Me and made it into a short book. There's a Kindle version for 99 cents, and if you buy the paperback you get the Kindle free.

Playing "Help-Me" In the Style of Sonny Boy Williamson II: A step by step, note for note analysis of some of Sonny Boy's Signature Riffs

I also write Science Fiction, so you can sample some of my best stories. Also available in Kindle format.


Error Message Eyes: A Programmer's Guide to the Digital Soul
 

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The JT30 Page Popular links

I began collecting data about the microphones used by blue harp players before there was an internet. I began organizing it into JT30.com in the late 1990s. I accumulated more stuff than I remember. This is some of it.

Street Theory

A Harp Player’s Guide to Music Theory

Learning Harp

Picking Up Blues Harp

A guide to learning to play Blues Harp

Microphone Information

Usenet Articles


Harp Amps

I've been collecting Harp Amps for a while. This is the old Harpamps.com website. There is lots of information here. Here a coupld of links.


Harp Tab

A collection of songs and riffs that I’ve worked out over the years, plus some libraries of stuff I’ve converted to tablature. I’ve included most of the notes and instructions that helped me when I was learning to play blues harmonica.

Basic Riffs Simple harp tabs for songs Blues riffs and phrases.

Harp-L Archives 1992 to 2002


1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003

Harp Frequently Asked Questions