Charge pump – Page 3 – wp PEDALIA org

Fuzz Face PNP negative ground with simple bipolar power supply

3 Jun 202613 Nov 2010 by chords

Fuzz Face PNP negative ground with simple bipolar ps 1c222996a5fd

This one will let you continue to use the more consistent PNP germanium transistors, but the charge pump will provide a -9V supply, so the ground at 0V can be daisy chained with all your negative ground effects. The same structure could be used with any circuit that is usually PNP like the Rangemaster or … Read more

.. and a few more

3 Jun 202621 Mar 2010 by chords

9 to 18V (ish) converter DAM 1966 LofoMofo Rangemaster NPN

Keeley Katana Boost

3 Jun 202614 Feb 2010 by chords

UPDATE (09-02-2012): Without the chargepump and so requires an 18V supply. The schematic that the earlier layout was created from has been shown to be incorrect. In the scheme the switchable 10u cap was linked to the source of Q2, this in fact needs to link to the source of Q1. Apologies to anyone who … Read more