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Hoffman Amps Forum image Author Topic: I SHOULD KNOW THIS!!!!!! Separate bias winding.  (Read 1965 times)

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Offline Blind Lemon

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I SHOULD KNOW THIS!!!!!! Separate bias winding.
« on: January 10, 2017, 05:15:32 pm »
Independent bias winding< ground one lead and the other is the supply? I am either brain farting or I have never run across this before.

I am thinking it is the first and not the second.  :think1:

BL

Offline sluckey

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Re: I SHOULD KNOW THIS!!!!!! Separate bias winding.
« Reply #1 on: January 10, 2017, 06:33:11 pm »
Quote
Independent bias winding< ground one lead and the other is the supply?
Yes, if you will do a typical single diode supply.

Depending on the winding AC voltage and your desired bias voltage, you may need to use a full wave bridge. In this case you would not ground one of the winding leads.

A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline Blind Lemon

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Re: I SHOULD KNOW THIS!!!!!! Separate bias winding.
« Reply #2 on: January 10, 2017, 09:15:04 pm »
It's a 95 volt winding so a one diode supply should do.


Thx


BL

 


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