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Hoffman Amps Forum image Author Topic: Single-Ended Plexi Build Help  (Read 3773 times)

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Offline Big_Mike

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Single-Ended Plexi Build Help
« on: December 15, 2016, 08:56:22 am »

I ran across a very interesting schematic for a single-ended Plexi with a pseudo-phase inverter for a presence control and extra gain.  The schematic is attached.

I have a couple of questions, and will need some help on this:

1.  Would I be able to use the Hoffman stout chassis for this build?  Will there be enough room?
2.  I need some help converting the schematic into a PTP board layout.  If someone could help me with that, I would very much appreciate it.  Thanks so much.

Offline shooter

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Re: Single-Ended Plexi Build Help
« Reply #1 on: December 15, 2016, 09:31:19 am »
The Stout should work fine, tight but works, I've built 2 amps on the chassis using 2 pre, 2 power tubes.
download dougs plexi6V6 layout, then with your favorite editing software cut/paste the "new" values n components.  I just did a 2ch twin type layout based off somebody else's layout that was close.  take your time, re-work as much as needed on paper so you don't have to do it with solder! 
Went Class C for efficiency

Offline Big_Mike

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Re: Single-Ended Plexi Build Help
« Reply #2 on: December 15, 2016, 10:38:18 am »
Just as an FYI, here is a link to the webpage where I found the schematic and a write-up on the amp.  There is also a clip there which sounds pretty good:

http://chasingtone.com/dvnator/the-seplex/

Offline BetterOffShred

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Re: Single-Ended Plexi Build Help
« Reply #3 on: December 15, 2016, 11:39:49 am »
Cool site, thanks for the link!   His projects all look pretty interesting.

Offline Glenn

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Re: Single-Ended Plexi Build Help
« Reply #4 on: December 15, 2016, 12:15:40 pm »
hi Big_Mike. the link you posted has a layout already there.

its just under the schematic...

with respect, Joe

Offline Big_Mike

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Re: Single-Ended Plexi Build Help
« Reply #5 on: December 15, 2016, 12:48:30 pm »
hi Big_Mike. the link you posted has a layout already there.

its just under the schematic...

with respect, Joe

Thanks, I totally missed the link to the drawing on his site.  I will try and convert his tag board into something more compact to use with the Stout chassis.

 


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