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DIY Stompboxes => Building your own stompbox => Topic started by: markm on May 29, 2007, 07:07:58 AM

Title: Trem Face Question GEOFEX schem.....R.G.?
Post by: markm on May 29, 2007, 07:07:58 AM
This was mentioned in another topic but, I thought I'd start this thread in hopes of finding the correct answer.
In the schematic for the Trem Face on R.G.'s site, there are a number of references to V- rather than ground.
What is the difference between V- and Ground.....does it have to do with Voltage Swing of the circuit perhaps?
See the schem here; http://www.geofex.com/Article_Folders/trem_face/tremface.htm (http://www.geofex.com/Article_Folders/trem_face/tremface.htm)
Maybe to keep the circuit cleaner and not distort?  :icon_confused:
Title: Re: Trem Face Question GEOFEX schem.....R.G.?
Post by: R.G. on May 29, 2007, 08:14:59 AM
That is because the Trem-face is a positive ground pedal. V- is the power supply, and it's -9V.
Title: Re: Trem Face Question GEOFEX schem.....R.G.?
Post by: markm on May 29, 2007, 08:27:03 AM
That is because the Trem-face is a positive ground pedal. V- is the power supply, and it's -9V.

Ahhhh.  :-[
Many Thanks!