How about, insteading of grounding the tap of the trimpot and hooking the diodes to the top, grounding the bottom of the trimpot and hooking the diodes to the tap?[ Parent ]
That would probably work too, but I gave this a try yesterday and now the whole thing works pretty much the way I intended it to:
If you want to increase the voltage spacing between the LEDs you can add an extra diode in series (as I've done with Q1).
I've revised the PCB layout a bit to accomodate the changes, and it now measures 100x25mm (4x1"). I'll post the artwork here if anyone is interested.
BTH[ Parent ]
