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    Building, troubleshooting and testing of these amplifiers should only be
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Please help identify this old Woden transformer

Hi diyA Folks

Can anyone shed light on this transformer? It's been in my parts bin for nearly 40 years and I seem to recall it was my father's before that. I'm wondering:

Is it an "auto transformer"?
What could it have been removed from?
Is it of use for tube (or other) audio?
How does one generally wire it up / use it (Australia = 240 line voltage)

Thanks for anything you can add ...
Simon
 

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If it would be an autotransformer, so just one winding with many taps, than you would have to be able to measure resistance between all taps.

My guess is that it is a normal transformer with many possible voltages on the primary side and 0-5-10 V (at a maximum of 6.35A) on the secondary side.

I'm not 100 % sure what the "C" means but if there's resistance between "C" and the 100-115-120-160-200-230-250 taps I would think that "C" is one of the two taps where the primary voltatge has to be connected to (while the other connects to one of the 100-115-120-160-200-230-250 taps depending on the value of the mains voltage).

Ofcoure there should also be resistance between the 0-5-10 taps (but not to any of the other taps).
 
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