Old SE transformer measuring?

Ryssen · 18th April 2006, 06:15 PM

I have 2 old,smal SE output trafos from about 1940-50.I have no data on them,is it possible to find out what the prim/sek windings are?

ddd · 18th April 2006, 08:06 PM

In fact you need to know the ratio, not the numbers of turns. Connect to the "Primary" 10 - 20V, 50Hz or 1000Hz and measure the voltage on the "Secondary". The ratio of the two voltages is the ratio of the windings. It's good to measure the inductance as well. It's up to the size and could be 1-10H. Higher - better basses.

Ryssen · 18th April 2006, 10:30 PM

Ok,will try that.

18th April 2006, 06:15 PM	#1
Ryssen diyAudio Member Join Date: Dec 2003 Location: Sweden--> Here	Old SE Trafo messauring? I have 2 old,smal SE output trafos from about 1940-50.I have no data on them,is it possible to find out what the prim/sek windings are?

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18th April 2006, 08:06 PM	#2
ddd diyAudio Member Join Date: Oct 2005 Location: Sofia	In fact you need to know the ratio, not the numbers of turns. Connect to the "Primary" 10 - 20V, 50Hz or 1000Hz and measure the voltage on the "Secondary". The ratio of the two voltages is the ratio of the windings. It's good to measure the inductance as well. It's up to the size and could be 1-10H. Higher - better basses.

18th April 2006, 10:30 PM	#3
Ryssen diyAudio Member Join Date: Dec 2003 Location: Sweden--> Here	Ok,will try that.

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