SolidState reverb driver needed

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rutledj
Posts: 354
Joined: Sun Sep 17, 2006 2:08 am

SolidState reverb driver needed

Post by rutledj »

Do any of you fine gentlemen know where I might find a schematic (and a layout mostly) of a discrete or opamp reverb tank driver and recovery ckt?

I'm attemping a Blues Junior clone using the Heyboer trannies and I dont' think there is enough juice available to use a tube ckt.

The existing bj reverb ckt doesn't get very good remarks and I was hoping to find an improved version.

Thanks,
Rut
markr14850
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Re: SolidState reverb driver needed

Post by markr14850 »

I have no idea if it really works, but the last circuit in the attached pdf describes a solid-state reverb driver.
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Andy Le Blanc
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Re: SolidState reverb driver needed

Post by Andy Le Blanc »

Those look like they'll work, but they don't give a loading figure to select a
tank input impedance. Follower's and SRPP's like to see a fixed ideal load,
no matter whether its a valve or solid state.
lazymaryamps
ampdoc1
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Re: SolidState reverb driver needed

Post by ampdoc1 »

Try here! There is in particular a Reverb Drive circuit that looks like it would work with a standard Fender pan. Also lots of different amp schematics that might have what you want.

http://www.freeinfosociety.com/electron ... .php?cat=1

ampdoc
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Structo
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Re: SolidState reverb driver needed

Post by Structo »

Just curious how or why you chose to choose the Blues Jr. for a clone project?
Tom

Don't let that smoke out!
rutledj
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Re: SolidState reverb driver needed

Post by rutledj »

Just curious how or why you chose to choose the Blues Jr. for a clone project?
I like the fender sound. I wanted a low power style amp. (Already built a dumble clone and a vibroverb clone)

And lastly, the bj is a pretty cool amp!

Rut
rutledj
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Re: SolidState reverb driver needed

Post by rutledj »

markr14850 wrote:I have no idea if it really works, but the last circuit in the attached pdf describes a solid-state reverb driver.
This ckt uses a high voltage. I have a +- 15vdc power supply available.

Rut
solderstain
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Re: SolidState reverb driver needed

Post by solderstain »

Here's an op amp-based circuit that Craig Anderton designed back in the 1970s. It was published in GP mag back then. I used this circuit when I built a small 8-channel mixer back in the late 1970s for some home recording work. I used a Fender-spec Accutronics pan and it worked excellent. It's supposed to be adjustable for a variety of pans, and I'd have to believe it's true. I dug this up after 30 years because I plan to use it to add reverb to small build I just completed.
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rutledj
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Re: SolidState reverb driver needed

Post by rutledj »

Did you forget the link?
solderstain
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Re: SolidState reverb driver needed

Post by solderstain »

rutledj wrote:Did you forget the link?
Who are you asking?
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bnwitt
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Re: SolidState reverb driver needed

Post by bnwitt »

Lots of info can be found on the Accutronics website:

http://www.accutronicsreverb.com/schemat.htm

Also, the Fender Hotrod Deluxe is an example of a SS reverb implementation with the common TL072 Op amp that sounds great. File attached. The latter version of the Blues Jr. (cream board) had a modified reverb circuit that most agree sounds fine. Read about the changes here:

http://billmaudio.com/wp/?page_id=34
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