Valhalla schematic / Power correction

warpeggio

New member
The schematic for the Valhalla keeps referencing a +9V rail, yet the voltage regulator is LM2940CT-12, which is a +12V regulator.

The Diezel VH4 appears to have 12-18V marked on the case above the power jack. I suspect there was an issue transcribing the schematic.

If you're experiencing issues, you may want to try using a 12v power supply with the pedal. My good friend and I were playing with his board and it DID function at 9v, although i would speculate that this makes the regulator unhappy [hot].
 
The "+9V" net marking was just a generic port for VCC that was used at the time.

The circuit is definitely supposed to be powered on 12 - 18V.

Even at 12V the regulator won't be really doing it's job, 18V is a better choice.
 
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