200e

to add and subtract numbers of pulses,
make the 250e have a 'retreat' pulse input (as opposed to 'advance'),
by setting the stage addressing to strobed,
and patching a CV output to stage adressing CV input,
and setting the voltage output from each stage to address the stage before. the strobe pulse input then acts as a 'retreat' input.

then the current stage number is as an accumulator to which 'advance' pulses add and 'retreat' pulses subtract. have used this as a tempo difference meter comparing pulse frequency at 'advance' and 'retreat', and to synthesize signals at the tempo difference frequency.

many variations

also seems to suggest a few additions a sequencer might want......

had thought also of trying 256e in feedback around 266e sample and hold to do the adding and subtracting, but don't have the hardware at hand.

Yasi Perera