EGDM or PPF on 12 or 18 volts?

[jrigg]

Is it cool? Anyone try it? Will I fry my circuit?

[JofZ]

Is it cool? Anyone try it? Will I fry my circuit?

Bjorn will address this one, but you can run them at higher volts and you should not damage anything.

[Teahead]

Hoping that Bjorn doesn't mind, here's a copy and paste of a previous answer he posted to this query...

Most models PPF, CAF, SBEQ,EGDM,RRB, LGW,MGMV,SYT,LRT and BPB can be run at and may benefit from being run at 12 V's and come new supplied with a battery that leaves 10,6 Volts,
while HB and DRD, you'd might want to try at a slightly lower voltage.
DRD works down to 5V's and HB and 3BOD down to 6V's.
Hook those to the variable outlets and listen....
Personally I'd perfer DRD at about 7,6V's that just makes a more even saturation- it is also a circuit for 'brown out sounds. There is a span of change in HB and 3BOD in the 6 to 10V range, while just audiable some may just like the sligthly lower supplies

Depending on what chip you run in LGW e.g TLC 272 gives voltage range 5 to 15V and LF 353
8 to 24V's, clarity or complexity of distortion can be set. Generally with the LF 353 12 V's or higher is perfered. Choice of TLC272 was developed for more inherent distortion and to make unit more stable from lower supplies as the LF353 gets fuzzy at supplies lower than 8V. Choose chip from how you'd like to use this model and then set supply for further experimentation, would be my advice

SBEQ and EGD benefit from higher voltage and in this 12V makes about the vital difference though it is possible to run them at 18V. The same applies to MGMV and SYT,RRB and BPB, LRT

PPF may or may not benefit from higher supplies- much in the design was to make a fuzz unit as little as possible dependent on supply voltage and other typical 'magic'....CAF thrives around9 to 10V's though CAF can be driven from as high voltage as 24V, while not exactly perfered

All my pedals have voltage design center at 10,6V's, but take advandtage of their respective voltage range
For instance the DRD draws more current than BBOD so it was made to work to lower voltages.
EGD has a hefty output and that can be taken to advantage from higher supplies while unit will also have a clearer response. Voltage range is supplied ( minimum and maximum) in the manual for each model under Electrical Specifications. Full manuals should be downloadable as pdf files from www.custom-sounds.com. If any required information is missing please inform me


Perhaps this gives little insight and ideas to seek performance

Have fun
BJ

[jrigg]

Teahead - thanks. Exactly what I wanted to know.