Hello Nigel,
yes, if I´m not wrong in my measurements there is a faulty diod, it´s open. Can I replace it by any other rectifier? I don´t know the input signal frequency and voltage and may be if it has other caracteristics the indicator is not showing exactly the same...
A private question now, do you know any good Jiu jitsu trainer here in my island? I will open a gym for martial arts because I´m Muay thai trainer and I´m looking for one Jiu jitsu trainer. I have some options with a french guy which is very known here and some spanish ones but I´m still not decided.
Thanks.