[quote name='Chimike' timestamp='1415472574' post='2600760']
Hiya,
I also have a very early trace pre that is in need of attention. This one is the one with the two separate circuit boards, attached by ribbon cable, strangely, I also have a couple of the early RA500's, and one of them has a bad hum, so any chance of copies of the circuits ?
Thanks
Mike
[/quote]
Can't send anything without an email addy....you could download from the links in posts #2 and #3....!