12-24-2014, 11:39 PM
(12-24-2014, 11:16 PM)Geoff Wrote: I found that, at least in mine, a 6U5 did not give much action. It stayed perpetually bright and would not open and close. I replaced it with a 6E5 with no circuit modifications and it worked perfectly.Which could also mean there is something wrong with the circuit.
[Image: http://cdn.instructables.com/FBC/CF9O/HF...MEDIUM.gif]