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Putting the 5E3 and blackface circuits into the same amp?

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zaphod

Post subject: Re:

Posted: Mon Jun 25, 2012 8:04 am

Expert

Joined: Sun May 20, 2007 1:45 pm
Posts: 1254
Location: YYZ

Fresh_Start wrote:

You could feed a Tweed Deluxe preamp into a Blackface power section - probably would be really cool (especially if you had a switch to jumper the two input triodes in parallel)...

What you're describing there is basically the Brown Deluxe, another classic from the early Fender amp days.

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coco

Post subject: Re: Putting the 5E3 and blackface circuits into the same amp

Posted: Tue Jul 03, 2012 11:26 am

Holy Ghost

Joined: Sun Mar 13, 2005 4:10 pm
Posts: 7519
Location: Canada

If you want cleans, the mods we do to the PI & coupling caps will get you into that region , using a 5E3 Tweed circuit as a start. But you'd have to choose a single coupling cap value. We went with .022 and removed the PI 25uf bypass cap andadded a 470K PI smoothing resistor.

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printer2

Post subject: Re: Putting the 5E3 and blackface circuits into the same amp

Posted: Mon Aug 20, 2012 11:57 pm

Joined: Fri Apr 15, 2011 9:25 pm
Posts: 4

One added thing would be to get some NFB around the output, something like this to go from normal Tweed to clean.

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