Gainchooser

A simple preamp with input selector

Part 4: Plenty Power

Last modified: 06-Jul-2004

Power Supply

As said on page 3, I initially used the powersupply which was developed for my phonoamps "GainPre"and "PhonoClone".

The 15V rails are a little too high for the amp, which is built for 12V operation. But more important, the capacitors used in the amp have 16V rating and that's just too low in my opinion. I rather have 25V caps on those positions.

Don't bother too much about the rest of the regulation as we will use another set of caps close to the opamps inside the amp.

© Maarten@Platenspeler.com, 2004, 2006