This is one of Perran Newman's recommended mods. He recommends that the op-amp supply voltage source should be changed from 12v to 5v. I have made a drawing of the simplest and quickest way to achieve this. The op-amp is located on the CB PCB. http://i1077.photobucket.com/albums/w477/XE521/Op-Amp_Mod_zps16bf9fd5.gif Just one word of [color=red]warning[/color], do not apply too much heat when soldering, otherwise the copper lands can lift of the board.
posted on: 11/01/2015 15:19:50