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Old 1st July 2002, 02:21 AM   #1
fender4 is offline fender4  United States
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Default Easy DIY reverb?

Hi. I would like to build a reverb unit to be used for vocals. It would be used in a live setting primarily, but it might find a place in the studio if it outputs a nice or unique sound.

For size considerations, I would like to stay away from spring-based units. I have several years experience with circuit building, so if you know of a design, pass it on.

Any ideas?! Thanks for your help. The audio knowledge on this board is impressive!

-fender4
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Old 9th April 2017, 06:21 PM   #2
jfetter is offline jfetter  United States
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if no spring then btdr 3, but try spring one more time , use a good hi-pass filter on line input and output.

here is a simple one but it uses a spring.
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Old 9th April 2017, 07:31 PM   #3
jfetter is offline jfetter  United States
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and a 1960's discrete.
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Old 10th April 2017, 06:45 AM   #4
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Default Here's one for you to read

Quote:
Originally Posted by fender4 View Post
Hi. I would like to build a reverb unit..., I would like to stay away from spring-based units.
Welcome back.

This DIY Reverb page on Hometracked lead me to this article from ETI magazine using the MN3011 BBD

As it's got plenty of "how it works" info you should be able to clone it with whatever BBD device you can get your hands onto.

Otherwise you're into ADC/CPU/DAC territory.
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Old 10th April 2017, 08:23 AM   #5
Enzo is offline Enzo  United States
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Hi, fender4 hasn't logged on since 2006.

Accutronics (Belton) makes a solid state reverb module for under $15. Needs +5, ground, in and out.
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Old 18th April 2017, 07:26 AM   #6
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I always wondered if these could be integrated into old tube amps. I assume not because the old transformers wouldn't have those additional +5s right?
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Old 18th April 2017, 08:57 AM   #7
Enzo is offline Enzo  United States
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They need little current, I am sure some sort of +5 could be cobbled from existing supplies.
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Old 18th April 2017, 10:21 AM   #8
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Enzo would you have a link to share for that Accutronics module (did not see it on their site)

would a 5 volt supply from the heater section cause any grief?
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Old 18th April 2017, 12:56 PM   #9
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The Belton / Accutronics modules are available from AES (tubesand more.com). The data sheets are on their site. Select "reverb tanks" from their site menu, then search for "belton."

Here is the docs for the one I used.

Yes, you can use the 6.3 volt winding in a tube amp for power if it is already floating with a FWB. It might be possible to use a single half wave diode if one side of the heater winding is grounded, but I have not tried this.
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Old 18th April 2017, 02:41 PM   #10
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@Tubelab_com,
Is that you in the pic? You must pump alot of soldering iron :P

@Enzo,
Unless it is fairly brainless, I don't know if I would attempt cobbling a +5 from existing circuit unless the transformer had 5 volt taps.
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