How to modify Brian's LM3875 Rev C. supply board for use with CT?

maurycy · 26th April 2006, 02:45 AM

Hi,

I have 42V CT transformer giving me 21V-0-21V. I would like to use it with Brian's LM3875 Rev. C power supply board. According to the users guide for the kit, I should only use diodes D1, D3, D6, D8. Unfortunately the placement of those diodes is different on the Rev. C board.

Could anyone let me know if the instructions for Rev A (or B) still apply to the new revision?

Where do the wires from transformer go on the board? I have only three wires (21V-0-21V).

Attached is the board layout.

Thanks,
Alex

catalina3899 · 26th April 2006, 06:54 AM

I also had the same question. Take a look at this

Need Help With a True center tap Transformer

Good luck

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26th April 2006, 06:54 AM	#2
catalina3899 diyAudio Member Join Date: Feb 2006 Location: ca	I also had the same question. Take a look at this Need Help With a True center tap Transformer Good luck

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