Melanie,

Thank you for such a fast response & enlightening post! (I had no idea that PICS simply multiplexed their one AtoD (I feel cheated ).

So if summed the six strings & therefore just went with the one 'commonised' string input ...& perhaps trimmed the sample rate down a little (say 32 samples, therefore 1ms/32 = 1 ADC sample every 30us) ......do you think be viable on the 'standard issue' PICKit2 PIC - a 16F690?

I should have said I don't need this intense sampling to run continuously.... probably every 150ms would suffice (there 32 samples at 30us per sample for 1ms, pause for 149ms & repeat)

I'm not geared up for SMT & ultimately, this little widget will have to go in a guitar - and space it stight, so the lower the component count the better!