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 Forum index » DIY Hardware and Software
DIY Spring Reverb Module
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Dogenigt



Joined: Oct 25, 2009
Posts: 41
Location: Denmark
Audio files: 4

PostPosted: Tue Aug 20, 2013 5:19 pm    Post subject: DIY Spring Reverb Module Reply with quote  Mark this post and the followings unread

I just finished building this Spring Reverb Module, which is basically just a spring reverb tank with an amplifier circuit for mixing dry/wet and "decay time".

Posted Image, might have been reduced in size. Click Image to view fullscreen.

Check this link for video and guide/schematic.
http://www.dogenigt.com/2013/08/spring-reverb-module.html

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the19thbear



Joined: Apr 19, 2007
Posts: 114
Location: denmark

PostPosted: Wed Aug 21, 2013 2:35 pm    Post subject: Reply with quote  Mark this post and the followings unread

FEDT! godt arbejde:)
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umschmitt



Joined: Jun 29, 2011
Posts: 161
Location: brrlin
Audio files: 11

PostPosted: Fri Aug 23, 2013 3:38 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hej! Battery operated spring reverb… Looks (and sounds) cool. Nevertheless, I can't help scratching my head when looking at the symbolic drawing on your site. You could use just the half of them op-amps (yes it'd be 1 1/2), or am I missing something? Shouldn't the mixing stage be biased also?
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Dogenigt



Joined: Oct 25, 2009
Posts: 41
Location: Denmark
Audio files: 4

PostPosted: Thu Aug 29, 2013 11:01 am    Post subject: Reply with quote  Mark this post and the followings unread

umschmitt wrote:
Hej! Battery operated spring reverb… Looks (and sounds) cool. Nevertheless, I can't help scratching my head when looking at the symbolic drawing on your site. You could use just the half of them op-amps (yes it'd be 1 1/2), or am I missing something? Shouldn't the mixing stage be biased also?


Hey thanks for feedback! Yeah, actually I now see that I forgot to bias the mixer! I don't notice any loss in signal quality - is it only producing signal in one polarity then? I will have to fix that! 2 resistors of same ohm from ground and + like the others? And yes, I had some bleed-through with the op-amps for some reason so I chose to use seperate ICs.

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umschmitt



Joined: Jun 29, 2011
Posts: 161
Location: brrlin
Audio files: 11

PostPosted: Fri Aug 30, 2013 5:06 am    Post subject: Reply with quote  Mark this post and the followings unread

Ok thanks. Seems quite an unorthodox build then, eh? Who needs biasing after all? The most important thing is that it sounds good…
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