MOTM

At 4:25 PM -0500 2004/04/16, Jeffrey Pontius wrote:
>To the experts (which is most everyone here but me),
>
>I working with a small circuit that I would like to add voltage control
>(e.g., lfo, env.) through an attenuating pot.  When negative voltages
>(e.g., from an lfo waveform) enter the circuit they 'screw things up'.  Is
>there a "simple" way to restrict the incoming voltages to positive
>voltages only?
>
>Thanks, Jeff

Simplest way is to use a diode. But you may still get a small 
negative voltage equal to the diode's forward voltage drop, around 
0.65V. Can your circuit handle a small negative voltage of -0.65V?