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DC sensitivity of toroid transformers?
DC sensitivity of toroid transformers?
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Old 15th July 2003, 05:40 AM   #1
tubetvr is offline tubetvr
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Join Date: Jan 2003
Location: Sweden
Default DC sensitivity of toroid transformers?

Hi

As some of you may know there are sometimes a risk to get a lot of mechanical hum from toroid transformers due to a DC component on the mains voltage.

I have read somwhere that Jeff Rowland in his amplifiers use a circuit consisting of diodes and capacitors between mains and transformer in order to remove the DC component.

Has anyone any information on how this circuit look like? I can imagine that you can build it using 2 Zener diode connected in series but I wonder if anyone have any idea how it is done in Jeff Rowland amplifiers?

Regards Hans
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Old 15th July 2003, 07:29 AM   #2
theChris is offline theChris
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Join Date: Dec 2001
Location: SIUE, Illinois, USA
likely the answer can be found in the pages of:
http://www.diyaudio.com/forums/showt...singing+toroid
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