On 7/5/06, Wouter van Ooijen wrote: > > The input signal is 20v peak-to-peak (-10v to +10v) ac 14Mhz > > rf signal. > > and i want to shift it to ( -15v to +5v ). I looking for a > > way to do it > > without using additional power supply. > > a suitable transformer, with the 0 of the secondaryt at -5V? > > Wouter van Ooijen > capacitor, choke to -5V? 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