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Hoffman Amps Forum image Author Topic: How To Remove The Reverb Circut From a AB763 TWIN  (Read 2056 times)

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Offline mguitarworks

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How To Remove The Reverb Circut From a AB763 TWIN
« on: March 11, 2012, 04:18:13 am »
HI guys, i want to remove the reverb circut from my AB763 Clone,

(yes, i have already pulled the tube, disconnected the wires to the tank ect)

i not sure about the rest though..mixing resitor, reverb transformer and will the rest of the circut still be fine with the reverb removed(extra voltage ect)

cheers thanks

Offline LooseChange

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Re: How To Remove The Reverb Circut From a AB763 TWIN
« Reply #1 on: March 11, 2012, 06:53:13 am »
Good question. I would't worry about the voltages but I've always wondered about the unloaded reverb transformer if the driver tube was left in... Will it burn up?
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Offline tubenit

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Re: How To Remove The Reverb Circut From a AB763 TWIN
« Reply #2 on: March 11, 2012, 07:51:32 am »
Disconnect the RT from B+. With the reverb tank unplugged and the tube removed, you should be fine.

Out of curiousity, why do you want the reverb removed from the Twin? 

with respect, Tubenit

Offline sluckey

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Offline Willabe

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Re: How To Remove The Reverb Circuit From a AB763 TWIN
« Reply #4 on: March 11, 2012, 09:58:00 am »
You might want to leave the verb mixer stage in.

It's been said many times over the years that even guys who don't use any reverb still prefer the sound of the verb channel (with no reverb) over the sound of the same BF model that doesn't have on board reverb.

You could leave that in, only the verb  _ mixer stage _ (disconect the verb return stage), try it, than pull that tube and jumper around it to see which you like better?

Even for clean sounds it can sound fuller, warmer.

OTOH, like tubenit asked, why do you want to take it out? Unless your tryin to free up a couple of tubes to use for something else, why not just turn off the verbs volume?

                        Brad      :icon_biggrin:
« Last Edit: March 11, 2012, 10:14:34 am by Willabe »

 


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