Hi David,

> I've got this A-111 I got used via AH some months ago. it works
> according to what I'd expect except that the range switch has an
> anomaly. Set all the way counterclockwise, it puts out at LFO
> frequencies, but for the top two positions it reverts back to LFO.

It

> has ten positions also, not eight.

That sounds normal: only 8 of the ten 10 positions are used, and
because of the type of switch used (it is a 'binary coded decimal'
one), when you turn it past position 8, it 'wraps around' giving the
lower two settings again for 9 and 10.

At the high end, nothing above

> maybe 8000 cps is available. And in the low end, it doesn't go all
> the way down to less than 1 cps like other oscillators, but maybe to
> five or six cps only.

In normal adjustment, the '-3' setting should give approx 8Hz with 0V
CV in, and the '4' position will then be 1046Hz, at 0V in. At '4', if
you input 5V, it should be good for 33kHz or so, and maybe more for
more volts in. If you are not getting this, then the irst step would be
to try and re-calibrate the module, which most likely you will need to
ask Dieter for!

Tim