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Hoffman Amps Forum image Author Topic: Deluxe Reverb without Reverb  (Read 2472 times)

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Offline roseblood11

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Deluxe Reverb without Reverb
« on: June 22, 2023, 09:44:05 am »
Hi,
I'm planning to build a one channel amp, that has exactly the sound and gain structure as an AB763 Deluxe Reverb - but WITHOUT THE REVERB. How should I modify the circuit? Leave the 3.3M, 10p and  the 150k to gnd ( = 470k and 220k in parallel) in place? What would you recommend?
http://www.brieskorn.de/Guitar___Amps/Verstarkerprojekte/AB763/circuit_mod.pdf
« Last Edit: June 22, 2023, 09:46:28 am by roseblood11 »

Offline labb

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Re: Deluxe Reverb without Reverb
« Reply #1 on: June 22, 2023, 09:59:36 am »
Take a look at this. should give you an idea of how to procede. Princeton Reverb Delete (robrobinette.com)

Offline pdf64

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Re: Deluxe Reverb without Reverb
« Reply #2 on: June 22, 2023, 01:01:32 pm »
Hi,
I'm planning to build a one channel amp, that has exactly the sound and gain structure as an AB763 Deluxe Reverb - but WITHOUT THE REVERB. How should I modify the circuit? Leave the 3.3M, 10p and  the 150k to gnd ( = 470k and 220k in parallel) in place? What would you recommend?
http://www.brieskorn.de/Guitar___Amps/Verstarkerprojekte/AB763/circuit_mod.pdf
That schematic doesn’t have tremolo but has a type 4 master volume and a switched bright cap with much higher value (labelled presence).
It may be a good idea to list all the features you want.
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Offline tdvt

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Re: Deluxe Reverb without Reverb
« Reply #3 on: June 22, 2023, 01:28:18 pm »
It may be a good idea to list all the features you want.

Agreed, as there are many well documented versions of single channel Fender circuits already out there, some with little extras (or not)

RobRob's BLACKVIBE is an an AB763 with no trem & no reverb. To me, this design seems like a nice clean starting point & I believe it has also undergone a few versions-worth of sorting.

BLACKVIBE LINK

Offline Esquirefreak

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Re: Deluxe Reverb without Reverb
« Reply #4 on: June 22, 2023, 01:43:43 pm »
Another option is to build a single "normal" channel Bassman AB165 with a AA864 power section. A pot/divider between the 2nd and 3rd stage and a type 2 MV after the PI makes for a very versatile amp. I build one like that for a friend.

/Max

Offline sluckey

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Re: Deluxe Reverb without Reverb
« Reply #5 on: June 22, 2023, 02:10:17 pm »
If you may be interested in a single channel (normal channel) Deluxe AB763 look at this...

     http://sluckeyamps.com/misc/AB_Lite_II.pdf
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

 


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