On 1/30/06, Chris Emerson wrote: > * Unless it's 5-6V (regulated down for the PIC), I'll need to work out > how to boost it to drive the tansducer with ~10V peak-to-peak. Can you bridge the transducer across two outputs and drive them out-of-phase? That will double the voltage the transducer sees. Regards, Mark markrages@gmail -- You think that it is a secret, but it never has been one. - fortune cookie -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist