[sdiy] asm1 lfo and power supply

[Rob B]

> To be honest I'm still working with a very bad powersupply built around a
> 7815 and 7915. Worse is, that I have -17V instead of -15 (don't ask me
why -
> only the 7915 knows...).

Check the grounding of the 7815/7915.. If the ground is bad, there might be
a reference induced by weak grounding/resistive grounding, which is then
added to your regulated voltage. So, if your ground is weak, then perhaps
add a few jumpers to ground it better and see what happens.

Rob