Are you looking for a dead simple, reliable spring reverb driver circuit? This could be just what you are looking for.
It is simple enough to be built on a veroboard, see below, in fact you have to as there is no schematic and no PCB layout. Fortunately it is extremely easy to follow and if you have been building modules for some time you probably have most of the parts already.
- Website https://ua726.co.uk/2012/07/08/tombolas-diy-spring-reverb-driver-circuit/
- From Muff Wiggler: http://www.muffwiggler.com/forum/viewtopic.php?t=36048