Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => AmpTools/Tech Tips => Topic started by: Colas LeGrippa on May 01, 2008, 07:10:43 pm

Title: DOES anyone HAVE a BOOk  on TRANSFORMER winding ?
Post by: Colas LeGrippa on May 01, 2008, 07:10:43 pm

Hi boys and gals, I am actually looking seriously for a BOOK on how to wind audio transformers, with tips, pics, including number of turns, area of EI configuration for special purposes etc. etc.
I have found a marvelous WINDING TABLE, including a counter, motor, clutch, speed control ,  for a couple of bucks. It was lying on the mezzanine of an old electric motor rewinding shop, under tons of cardboard and dust. They will supply me with wire spools , insulation paper, chemicals, but they have NO SILICON STEEL LAMINATIONS.
I will take apart old transformers for that. Anyway, they have given me good tricks, but what I need is a bed book with more technical infos with math. formulas and so on. I will read while my woman will be asking me for more............
I 'd really appreciate to get an old book on that matter or have a place where I could get one.

Best regards

Colas

Title: Re: DOES anyone HAVE a BOOk  on TRANSFORMER winding ?
Post by: jjasilli on May 01, 2008, 07:53:03 pm

Search this page for "transformer". Lots of info.  MIght help:

http://www.audiophool.cjb.net/Techno.html

Title: Re: DOES anyone HAVE a BOOk  on TRANSFORMER winding ?
Post by: quayhog on May 01, 2008, 08:05:02 pm

Look for the book:
TRANSFORMERS AND TUBES
Menno Van Der Veen
Published in 1995 by Plitron Manufacturing Inc
#8 601 Magnetic Drive
Toronto, Ont M3J3J2
416-667-9914

If its out of print and unavailable let me know and I will sell you mine.  Its way over my head.

Title: Re: DOES anyone HAVE a BOOk  on TRANSFORMER winding ?
Post by: triode on May 01, 2008, 08:28:05 pm

Check out Ch 5 of RDH (available here: http://www.el34world.com/charts/Books/RDH4.pdf)

If nothing else, you could check the references at the end of Ch 5, as
he tends to list a lot of good references.

You may also want to consider reading Mikes papers that he has
put up on his site: http://www.magnequest.com/mq_magnetics.htm

Just my $0.02.

Title: Re: DOES anyone HAVE a BOOk  on TRANSFORMER winding ?
Post by: sawdust on May 02, 2008, 05:51:25 am

Try the 'Useful Links before You Post' on the Tube Amp Building page. Then try the Pete Millet links. I have also seen reference material on e-bay for that..

Dave

Title: Re: DOES anyone HAVE a BOOk  on TRANSFORMER winding ?
Post by: PRR on May 17, 2008, 11:33:06 pm

> a BOOK on how to wind audio transformers, with tips, pics, including number of turns

http://pmillett.com/
http://pmillett.com/vintage_data.htm

"Build It Yourself - A 50 Watt High Quality Audio Amplifier" (5.4MB PDF file)

Little about transformer design, but step-by-step winding instructions. You could use these irons with any 6L6GC EL34 6550 50W amp and be happy.

Note: he says a big sheet of polystyrene is $0.39 and you can buy a gallon of toluol for $1.65. Not only are these prices old, you really do not want to be huffing toluol (model airplane cement) in a gallon jug. Gives you giblet-cancer. (Also dissolves your brain... so what?) They probably won't sell the stuff to children or musicians. Use shellac; it was good-enough 1880-1955 and was probably used well into the 1960s. Or leave the windings dry; his windings used cotton-covered wire, and you will surely be using shellacked (miracle poly-coat) wire.