thanatoid wrote:

I /tried/ to make this short, really!

Are you sure the original turntable had a magnetic cartridge? - and if so,
did it contain a preamp for it? - is there a feedback path through a switch
that doesn't work, Sony did stuff like that on their taperecorders causing
the record amp to oscillate if the switch was defective.

Any advice will be greatly appreciated.

Kind regards

Peter Larsen