Cgs synth

Apparently I've made a blunder on the Infinite melody boards (both original
and REV1).

The base of the BC547 should be connected to pin 15 if IC2 (4015) and not
pin 1 of IC1 (LM358).

The schematic is correct. The error is on the PCB.

Ken
_______________________________________________________________________
Ken Stone sasami@...
Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>

Re the blunder on the Infinite Melody boards with respect to the LED driving
transistor: There is no need to correct the boards despite this error, it
will function quite adequately as is. The only real danger would be zenering
of the base-emitter junction of the transistor, though the LED in line with
the emitter should prevent this (unless the LED itself zeners as well). The
1k in series with the LED will prevent any excessive current flows should
this happen.

Ken
_______________________________________________________________________
Ken Stone sasami@...
Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>