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-   -   can anyone identify theses OT markings? (http://www.diyaudio.com/forums/tubes-valves/180916-can-anyone-identify-theses-ot-markings.html)

trigger 11th January 2011 04:58 AM

can anyone identify theses OT markings?
 
i have 2 transformers that were pulled from a large wurlitzer organ (i think maybe lowery?)

one of them is marked;

W.TT
117782
4573

the other;

p1.10
117782
2900

each has one white and one black wire and both look identical in make.

i was just trying to find out some specs on them, and way to test them?

thank you much

aardvarkash10 11th January 2011 05:36 AM

sounds like chokes, not transformers...

trigger 11th January 2011 06:31 AM

yeah chokes.

umm excuse my noobness but what is the difference between a choke and output transformer?

aardvarkash10 11th January 2011 06:36 AM

a choke is a single winding inductor - one wire in, one out.

Typically it is used in a power supply to smooth the ripple in the supply.

A Transformer has two (or more) windings and typically is designed to match the voltage (or impedance) of dissimilar supply and load.

trigger 11th January 2011 04:47 PM

thank you for clearing that up, any clue how to test the henrys? on the choke?

Tre' 11th January 2011 09:22 PM

How to Measure Inductance


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