active pups and making preamps

[David Schwab]

thanks for the help, i have been planning to do a low output coil anyway. the drain on the battery is related to the watt level of the chip used?

Some chips are low power, so they don't draw as much current as others.

The FET (field effect transistor) circuit I showed doesn't use much power, and the battery should last quite a long time. I go months between battery changes, and even then the battery is not dead. I just like to put a new one in.

I usually change my battery when I put new strings on my bass.