Here's a collection of vero (stripboard) and tagboard guitar and bass effect layouts that we have put together covering many classic and popular effects in growing numbers. Many of these have been posted on freestompboxes.org, so check that site out for great discussions on building your own effect pedals. Enjoy the builds and please also visit us on Facebook and Twitter
I had a request for a vero of the Mastotron, so here's the Woolly Mammoth which is virtually the same, with the Mastotron just having an additional 100K linear pot which the input is taken to before the first capacitor.
The new input wiring with the Relax/Pull pot can be seen on my tagboard layout here: