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Hoffman Amps Forum image Author Topic: Fender Pro Junior Choke  (Read 1963 times)

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Offline ListerHayes

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Fender Pro Junior Choke
« on: January 23, 2020, 02:19:10 pm »
First off, thanks again for all the help on getting my amp squared away.

Next up, I just put in MM Output and Power transformers and have a MM choke that I'd like to add.  I've never installed a choke before, so where would be the best place to wire it in?

Offline jjasilli

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Re: Fender Pro Junior Choke
« Reply #1 on: January 23, 2020, 02:34:01 pm »
There is only 1 place for the typical guitar amp: after the plate supply & before the screen supply.  That's where R32 is.  You can then dispense with R32; reduce its value; or maybe increase the value of the screen resistors R24 & R25.


Or do you mean where physically in terms of layout?

Offline ListerHayes

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Re: Fender Pro Junior Choke
« Reply #2 on: January 23, 2020, 03:04:48 pm »
There is only 1 place for the typical guitar amp: after the plate supply & before the screen supply.  That's where R32 is.  You can then dispense with R32; reduce its value; or maybe increase the value of the screen resistors R24 & R25.


Or do you mean where physically in terms of layout?

Thank you.  That's what I needed to know.  I'll start by putting the choke in place of R32 and see how it performs...

 


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