Re: Audio Cyclopedia - A highly recommended book



BretLudwig wrote:

Pat T

"I've never seen the actual winding plans for the Radford amps.
Old secret stuff. Bah, let them keep thie bloody secrets, I don't care,
what I will wind will be better anyway.

I am, not sure about the situation in the US
but in the EU out of some thirty or so commercial transformer
manufacturers, there seem to be only two that can work to such a high
standard.

Lundahl and Sowter?

I have just nearly completed reforming a VAC 7070 amp with a quad of
300B per channel.

The brand of OPT used is unknown, but they do seem to have a big
simularity
to something made by Hammond, which is the brand used by many
hobbyists in the US and elsewhere.

Hammond ain't the cream though.

It don't matter though, because the VAC OPT do have **enough** bandwidth
to allow
faultless and blameless wonderful sound and technical performance.

So we have a situation where the Hammond is the main choice because its
affordable and good enough.

Something wound like an old Williamson would be 3 times the price, and a
waste of money imho.

If I was a commercial winder, I'd charge twice what Hammond does,
because I know I'd offer a slightly better performance at HF due
to much better interleaving, and better ranges of impedance matches
*without* wasting turns on the secondary.
See my website for details.

Feel free to wind anything you fancy at my website such as OPT No1.

Clever dicks will do a lot better than I have.

Patrick Turner."<<

Visit any transformer plant winding stuff under 25 lbs. or so piece
weight, you'll see a largely dickless workforce. Transformer winding is
women's work, quite literally, on a commercial basis.


Aha, you know the secret behind secret men's business. Its women.

And indeed they wound many trannies, and made most of the tubes, and
other radio coils
and they did anything that suited their ability for quickly doing
dexterous work repeatedly.

Not many women worked in the design offices afaik.
So that's where the clever dicks were; beavering away to produce good
designs.

In the next office along the corridoor, some *** called Bean Kownter
laboured away to
dumb down the design to make it use less women's work to wind it.

Its a *** of a world you know :-)

Patrick Turner.

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