Reverb with Momentary Feedbacker?
- Thread starter farwest1
- Start date
It would be pretty simple to add a monetary switch to the spatialist that maxes out the dwell knob. For some patches that can get pretty big.
if that sounds of interest to you, I can let you know the details. Mainly, you want to wire the switch to connect lug2-3 of the control 1 pot. But, you’ll also want a resistor (5kohm should work well) between lug 1 of the pot and ground (so trim that leg and don’t solder it to the board. This resistor will prevent shorting 3.3v to ground when the knob is at the lowest setting and you hit the switch. It will very slightly raise the minimum dwell level with the knob at minimum.
if that sounds of interest to you, I can let you know the details. Mainly, you want to wire the switch to connect lug2-3 of the control 1 pot. But, you’ll also want a resistor (5kohm should work well) between lug 1 of the pot and ground (so trim that leg and don’t solder it to the board. This resistor will prevent shorting 3.3v to ground when the knob is at the lowest setting and you hit the switch. It will very slightly raise the minimum dwell level with the knob at minimum.
FWIW both the pedals you mention use the belton brick. Maybe you could do something similar to my first suggestion with the pedalpcb spirit box dwell control. Though at first glance it might be trickier to pull off with an spst momentary switch, and still have it work well With the dwell pot set low. That is, if you prefer the belton brick sound to fv-1 reverbs.
farwest1
Member
Yeah, I think you're right about the belton brick. Seems like the thing I've been searching for. The Reverberation Machine gets some of the same sounds.
But if I tried to mod the Spirit Box, would I need the 10-pin versus the 6-pin? PCB is for 6-pin? Is the Dwell control on the Spirit Box essentially a gain pot?
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The spirit box dwell control feeds the reverb signal back in the pt2399 chip. So it still uses the 6 pin.
the 10 pin is quite nice, I’ve mentioned the 1776 rub-a-dub reverb deluxe as a nice simple iteration of the 10pin in other threads, and I think the reverb sound is smoother compared to the Rub-a-dub I built using the 6 pin. You could do something with that, but since the 10pin needs a dual pot for the dwell, you’d need a DpDt momentary stomp switch. So that’s an option too. In my experience, the rub-a-dub deluxe can get long reverb, not as long as the sparialist cavern patch though, so I’m not sure if it’d be enough for you. I haven’t built a ghost echo so I’m not sure how much Max dwell that gives either.
the 10 pin is quite nice, I’ve mentioned the 1776 rub-a-dub reverb deluxe as a nice simple iteration of the 10pin in other threads, and I think the reverb sound is smoother compared to the Rub-a-dub I built using the 6 pin. You could do something with that, but since the 10pin needs a dual pot for the dwell, you’d need a DpDt momentary stomp switch. So that’s an option too. In my experience, the rub-a-dub deluxe can get long reverb, not as long as the sparialist cavern patch though, so I’m not sure if it’d be enough for you. I haven’t built a ghost echo so I’m not sure how much Max dwell that gives either.
No I think the DBA Reverberation Machine & others you mentioned in your first post have additional circuits to create the distortion. The spirit box dwell knob will just increase the length of reverb. It may start to oscillate at extreme settings (I haven’t tried it, you could check some videos of the EQD), but that would be a different type of sound than the DBA
farwest1
Member
Thanks! Yeah, I think the key to me would be the distortion on the decay (either as a momentary feedback switch, or on a knob.) It's why I really like the DBA Reverberation machine and Solidgoldfx Counter Current. I have a Rubberneck delay that will add regen to the repeats, but it doesn't really add distortion.
Here's a gut shot of the Reverberation Machine. Seems like a relatively simple circuit, actually. I've never traced one before—maybe this could be my first.
Here's a gut shot of the Reverberation Machine. Seems like a relatively simple circuit, actually. I've never traced one before—maybe this could be my first.
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farwest1
Member
Cool! Found it. I've never built a veroboard pedal before. Maybe this will be my first.
Nostradoomus
Well-known member
Fuzzdog has a PCB for it
farwest1
Member
Purchased!
Jbanks
Active member
Yeah that’s a super grear reverb from Fuzz dog with the deep dwell options for pots and caps. My favorite reverb so far.
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