On Jun 24, 8:56*pm, stan wrote:
On Jun 24, 4:23*pm, raypsi wrote:





On Jun 24, 9:57*am, JIMMIE wrote:

On Jun 23, 5:22*pm, raypsi wrote:

On Jun 22, 1:47*pm, Stray Dog wrote:

On Mon, 22 Jun 2009, mikea wrote:
Date: Mon, 22 Jun 2009 10:55:05 -0500
From: mikea
Newsgroups: rec.radio.amateur.homebrew
Subject: Other uses for Microwave oven transformers?

Stray Dog wrote in g:

In the end, I wound up buying my plate transformers at hamfests and also
one, new, made by Hammond in Canada. Peter Dahl is out of business, and
Ameritron (I think) will sell plate transformers and some are reasonably
priced for the power and voltage. Fair Radio Sales (Lima, Ohio) and
Radio-Daze (NY) are two that sell Hammond transformers, including large
plate transformers (many types, specs all over the map, too).

Well, yes, Peter is out of the business, but the transformers and other
items are still being built to his specs:

http://forums.qrz.com/showthread.php?t=153611?

blockquote
Peter Dahl Company has NOT been sold. It is NOT moving across the border
to Mexico. Gary no longer works for the them. The Peter Dahl Company has
stopped production, is closing their doors, and will become part of
Amateur Radio History!

But the NAME lives on!

Jeff Weinberg, W8CQ of Harbach Electronics, has purchased the rights to
the name, the original transformer and choke specifications and designs,
and the design equipment.

The transformers will be built by MagCap Engineering using the original
PWD specs, and sold through Harbach Electronics under the Peter Dahl
name. The transformer and chokes will be FOB Canton, MA and shipped
directly to the customer from MagCap.

This is great news for the Amateur Radio Community and a great way to
memorialize the Peter Dahl Company who's innovations and designs have
brought so much to our hobby.

To nullify any further rumors or innuendos about the status or future of
the Peter W Dahl Company, let me share the following e-mail with you
(edited for content)...

Quote:
Harbach Electronics and Peter Dahl
From: "Jeff Weinberg W8CQ"
Date: Wed, February 20, 2008 2:30 pm
To: "Dino Darling"

Hi Dino,
Yes, the deal is finally completed. I have purchased all of the
transformer
designs and design equipment from Peter Dahl. I am moving the equipment
here to Ohio. Once all of the computer design work has been updated and
cataloged, I will be selling Peter Dahl transformers and chokes..

I should be up and running in a couple months.

(snip)

MagCap will be building the transformers according to the original Peter
Dahl designs and specs and will be sold by Harbach Electronics under the
Peter W. Dahl name.

Regards,
Jeff Weinberg W8CQ
Harbach Electronics

http://www.harbachelectronics.com
I've heard great things about Jeff and his company from people I know
and respect. To me this is a great day in Amateur Radio and I look
forward to the future with Peter W Dahl firmly rooted in our hobby!
/blockquote

--
Mike Andrews, W5EGO

Tired old sysadmin

Thanks for the info. It goes beyond what came out in QST at the time and
that was that production was going to end, period. There was no hint at
all in the QST anouncement that there was even any possibility for
continuation.

Hey OM:

The only way to do them is to tear them down to the lams re insulate
the lams and re stack them.

Only because they put weld shunt shorts on the lams that act as
shorted windings, plus the welds hold the lams together, because they
don't interweave them.

73 OM
de n8zu- Hide quoted text -

- Show quoted text -

I f you can find some of the older ones and they are getting harder to
find you can just knock the shunts out with a hammer and punch. I have
given some thought to trying cutting the welds out but I haven't had a
project lately that I am in that desperate of a need of a
transformer..

Jimmie

Hey OM:

I grind the shorts off on a grinder with 6 inch diameter grind stones.
Then I have to take the burrs off each lam. All the bear metal has to
be insulated. Then you can make like Tesla and series 3 transformers.
Talk about the air becoming alive. 7500 volts AC will show you how
much leakage there is in the air.- Hide quoted text -

- Show quoted text -

Years ago, to my regret (got fed up with stubbing toes on oversize
door stop) I dumped a 115 volt input neon sign transformer that was
capable (IIRC) of some 15,000 volts?
Great big insulators on each end. Probably a few milliamps output.
Don't see them 'open wired' to the neon signs any more as we did many
years ago?- Hide quoted text -

- Show quoted text -

The local skating rink uses them. One toasted a couple of moonths ago
when someone splashed it with a milkshake.Fire Brigade was called. I
noticed the new transformer has a plexiglass cover . They are a lot of
fun to play with. I got my hands on one when I was about 12. I made an
electric sword with it and an old automotive radio antenna. Touched my
brother on the butt with it. I knew it would shock him, I didnt know
he would collapse to the ground .My mother always wondered how I made
it to adulthood.



Jimmie