Dual Counter Seq Test 1

YouTube via wonkythomas

"I didn't know if the switches for the Jam Inputs would work with SPST switches... but the first one did, so I wired the rest up & everything works great!!

As usual Red = Output, Black = Input.... this is just a little frame / panel I use as a wiring jig but I'm really liking the layout."

4018 / 4029 Lunetta-esque Sequencer - Working!



"this is like a modular module... kind of a sequencer / clock / divider sandbox.

The top row handles interfacing to analog voltages; on the left is a simple comparator (In & Out) so any old voltage, LFO, Envelope etc. can be used to drive the CMOS chips. The next 5 bananas are a simple, single op-amp R2R digital to analog convertor so the outputs of the counters can drive a VCO etc.

The bottom row is the CD4029 , with a clock & direction input - the latter is really cool & can be used to 'loop' the counters.

The two middle rows are the in, out & controls for the Divide by N Counter. I have set-up switches for the Jam inputs so a pulse on the Preset Enable input with set the output states according to the switch settings making it a little like a regular sequencer but with the"