[slidertogrid]

Oh I see sorry I thought it was just one record player you were working on I can see it would be long winded if you have a few to do.
I did try a Maplin preamp myself some years back I powered it from the heater supply rectified and smoothed. I got nowhere having problems with it sounding shrill and causing a slightly distorted sound on higher output records like older 45s. Having read through this thread I have learned a lot and now have more idea why it didn't work very well, I expected it to be simple!
To be honest I didn't try very hard I had an hour or two trying various things and then reverted to looking for a good high output cartridge which I managed to get eventually.
I will follow this thread with interest!
regards
Rich.