Hi Stu

> @ dieter: that's more or less what i'm looking at - bending the 160/161 to run from a
> subdivision of the input to the 160, i.e. one of the 160's outputs. if i can manage that,
> then i'd like to try to get two 161s running at different speeds.
>
> if i can reset them separately too - thanks for your post on this - then i can have them in
> different time signatures too.
>
> all of which would give me a pretty flexible sequencer combo for just 12TE, more so if i
> add a vcs to it.

I don't have the schemoes of the A-161 here, but I had a look at it
yesterday evening. The A-161 is based on a CD-4017 Chip
(eg.
http://pdf1.alldatasheet.com/datasheet-pdf/view/50846/FAIRCHILD/CD4017.html)

Clock in is pin-14 of the chip and reset in is pin-15

As far as I remember the ribbon cable from the A-160 to the A-161 feeds
clock on wire-1, reset on wire-2, inverted clock on wire-3, and inverted
reset on wire-4. The rest is ground and Supply voltage

You have to split this connection between the ribbon cable and the chip,
insert a socket and connect the socket via a transistor/resistor combi
like the following to the counter (should be done for both: clock and reset)

+12 V
|
R
R 10k
R
/
100 |C
from socket---RRRR--B| BC549
|E
\
+--------to-CD4017
|
R
R 1k
R
|
Ground


Assumingly you need an additional frontplate to have place for the
additional sockets.

All written from memory, no guarantee that it will work. ;-)