Standalone solid state reverb?

General discussion area for tube amps.

Moderators: pompeiisneaks, Colossal

Post Reply
jaredcohen
Posts: 2
Joined: Tue Apr 24, 2018 6:32 pm

Standalone solid state reverb?

Post by jaredcohen »

I’ve always wanted to build a 6G15. I think about it from time to time and then I always shelve the idea again because I just don’t want to spend money on the big iron.

I came across Rob Robinette’s info about adding a Reverb and it reminded me that I have a 8EB2C1D tank I pulled out of an old solid state Fender head years ago. The specs are slightly different than his project (Input 800ohm, Output 2575ohm versus Rob’s 600:2250). I don’t know whether the specs are close enough, and whether or not his circuit could be built as a standalone unit.

If not, does anyone have a schematic for a standalone solid state unit that would work with this tank?
oxbow_lake
Posts: 68
Joined: Tue Aug 29, 2023 10:20 am

Re: Standalone solid state reverb?

Post by oxbow_lake »

This is not an all-in-one schematic, but when I was considering building a standalone SS reverb I found this article interesting/useful. It has a few options for solid state driver circuits for low and high impedance tanks, and also shows a basic recovery schematic. And a bunch of spring reverb info beyond that!

https://sound-au.com/articles/reverb.htm

In the end I just built a 6G15, otherwise I'd offer you a complete schematic!
User avatar
martin manning
Posts: 14936
Joined: Sun Jul 06, 2008 12:43 am
Location: 39°06' N 84°30' W

Re: Standalone solid state reverb?

Post by martin manning »

jaredcohen wrote: ↑Sun Apr 19, 2026 2:21 am I’ve always wanted to build a 6G15. I think about it from time to time and then I always shelve the idea again because I just don’t want to spend money on the big iron.

I came across Rob Robinette’s info about adding a Reverb and it reminded me that I have a 8EB2C1D tank I pulled out of an old solid state Fender head years ago. The specs are slightly different than his project (Input 800ohm, Output 2575ohm versus Rob’s 600:2250). I don’t know whether the specs are close enough, and whether or not his circuit could be built as a standalone unit.

If not, does anyone have a schematic for a standalone solid state unit that would work with this tank?
I think it would be close enough to give it a shot. For a power supply you could use this Velleman Kit for a symmetric 1A supply: https://www.jameco.com/z/WSPC8042-Velle ... ExCEEJ6or0
As I did for a spring reverb project a few years ago: https://ampgarage.com/forum/viewtopic.p ... 20#p391220
R.G.
Posts: 1862
Joined: Tue Dec 02, 2014 9:01 pm

Re: Standalone solid state reverb?

Post by R.G. »

An alternative if you are not just wanting a solid state spring driver is to use the Beltone BTDR reverb module. No springs, but a remarkably good reverb sound.
"For every complex problem there is an answer that is clear, simple, and wrong"
H. L. Mencken
neskor
Posts: 174
Joined: Fri Apr 17, 2020 1:53 pm

Re: Standalone solid state reverb?

Post by neskor »

one more vote for Belton brick, sounds great
R.G.
Posts: 1862
Joined: Tue Dec 02, 2014 9:01 pm

Re: Standalone solid state reverb?

Post by R.G. »

I liked them enough that I did a PCB for the BTDR to get it to fit inside a spring tank... :lol: so if your springs were broken, you could just hack the PCB into the old tank and make it all look "original" in there. This had opamps and pots so it could adjust levels for input drives and recovered output level.
"For every complex problem there is an answer that is clear, simple, and wrong"
H. L. Mencken
drewspriggs
Posts: 51
Joined: Wed Apr 03, 2024 8:08 am

Re: Standalone solid state reverb?

Post by drewspriggs »

oxbow_lake wrote: ↑Sun Apr 19, 2026 11:02 am This is not an all-in-one schematic, but when I was considering building a standalone SS reverb I found this article interesting/useful. It has a few options for solid state driver circuits for low and high impedance tanks, and also shows a basic recovery schematic. And a bunch of spring reverb info beyond that!

https://sound-au.com/articles/reverb.htm

In the end I just built a 6G15, otherwise I'd offer you a complete schematic!
I've just finished off another Riptide, which is a JFET preamp with a single drive/recovery stage. Using a +/-9v LT1054-driven supply for more voltage available, but if I was designing it myself I'd use a DC-DC converter to get 12/15v rails.

Still, a very compact and easy build to do
Post Reply