"I don't know if there's anything unusual about the setup, others may have come up with it before me- but I knocked up a quick test bed by drilling holes into a sheet of plywood and screwing valveholders into it. The underside is covered in tinfoil glued on, and wherever an earth connection is to be made, I just bung a drawing pin in, tin the head and solder to that. So far it seems to work quite well."
Love it!
Looking forward to reading more on this ...
Best wishes
Guy