[sdiy] Oberheim 2 voice kbd

[KA4HJH]

>Does anyone got the pcb layout for Oberheim 2 voice kbd digital
>controller? I also have diffculties reading the component values around
>the 723 regulator. Specially the resistor between pins 3 and 4.
>Anybody ?

Which keyboard controller? The earlier one with left/right priority, or the
later one which assigns keys alternately as they're pressed (IIRC)? I have
the earlier model.

The resistor across pins 3 & 4 is labelled "5111" and measures 4.05 ohms in
circuit both ways. I'm assuming this is a 5.11 ohm, 1% or better resistor.

[few minutes later]

I found the schematic for the 4-voice keyboard and it has the same resistor
in this location (I sent Anders a clip of the schematic). The circuit is
almost identical to mine except that the other resistor in the divider has
a pot in series with it.
-- 

Terry Bowman, KA4HJH
"The Mac Doctor"

"You'd PAY to know what you REALLY think"--Dobbs