LST / 10pi transformers

[Guest Bret]

Is it possible to test the transformer in a 10pi? What measurement would a person take and between what points? What values would you look for?

I guess a better first question would have been: Is it possible for a transformer to quit working and still pass signal? What would you have to do to "kill" or change the function of a transformer in these speakers? Does a transformer such as these age?

Sorry for my general transformer ignorance.

Bret

[Guest dogmeninreno]

>Is it possible to test the transformer in a 10pi? What

>measurement would a person take and between what points? What

>values would you look for?

>

>I guess a better first question would have been: Is it

>possible for a transformer to quit working and still pass

>signal? What would you have to do to "kill" or change the

>function of a transformer in these speakers? Does a

>transformer such as these age?

>

>Sorry for my general transformer ignorance.

>

>Bret

Hey Bret,To my knowledge,the xformers in question are actually "auto xformers" similar to buck/boost xfomers and variacs. This means that they are not true isolation types meaning that one side of the primary is tied to the secondary winding. I would doubt that a xformer problem would occcur based on the massive construction of these AR units. Shorted windings? Maybe but relative unlikely. I have not measured the transformers but maybe someone has. I believe Ken mentioned in one of his older posts that he wished he had when he had some LST's. I may stand corrected if someone disagrees...Dale

[Guest dogmeninreno]

Bret, Here's a link to what I'm talking about. http://www.transcendentsound.com/adjusting..._voltage_wi.htm

Try searching Google for autotransformers and more info..Dale