It's been a while since I did one, but as far as I can recall, the
diode is a pretty 'standard' looking thing, about 5-7mm long, coupla
mm or so on the diameter, black plastic, white or silver band one
end. I seem to recall it being pretty obvious, near to the input
socket, but that's to the experienced eye.


Its the same size but is clear plastic with the leads colored red as
they enter the plastic Cant see any bands in silver or black I could
email you a photo if you wish then I can be sure it is the same thing

Mike