• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Software for OT calculation

Hello, does anyone have this soft?

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There are a few people here that seems to know more about winding transformers than most.
Wouldn't it be nice if that knowledge was gathered and organized into a more or less large downloadable document?
As it is now a lot of info can surely be found, but it is presented in small and incoherent pieces here and there in a zillion threads.
 
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There are a few people here that seems to know more about winding transformers than most.
Wouldn't it be nice if that knowledge was gathered and organized into a more or less large downloadable document?
As it is now a lot of info can surely be found, but it is presented in small and incoherent pieces here and there in a zillion threads.

Unfortunately, information on making audio transformers is not easy to pack into a book, as every type of transformer requires unique approaches and studies.

I find that the most pragmatic way towards transformer knowledge is to illustrate already built and studied examples of transformer geometries. Transformer knowledge is very much made by a lot of trial and error, then studying the work with reverse engineering and then looking for theoretical explanations.

It is easy to get confused and to follow a wrong lead, because with transformers, too many parameters affect each other, like a mathematical equation with tens of unknowns. The more you build, experiment, measure and study, the more variables you get to isolate.

I believe each type of audio transformer: OPT, step up, step down, 1:1, input, line-out, SE, PP, phase splitter, etc, etc, require their own unique book/manual.

If I were to give the best simplest advice to anyone that I did violate and now regret - please don't throw away your "failures". Keep them in stock for further studies.

Most textbooks concentrate on leakage inductance and capacitance, but do not mention other crucial factors, such as resonance formation, capacitance distribution, the importance of secondary layers connections, etc, etc. And there is seldom an universal approach. For example, one type of transformers can be more tolerant to one solution than another type.
 
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