Bigger Dumber Sequencer

16 step, 6 channel analogue sequencer

16 step version of my Big Dumb Sequencer

For the people who asked, here's an even BIGGER dumb sequencer with 16 steps.
It functions largely the same as the 12-step version but with less quirks.

Operation: The left hand side of the module controls the sequencer, right side is the outputs.
The most basic way to use it is to set all the left side toggle switches down and patch a steady tempo to the CLOCK input.
The signal you use for CLOCK doesn't have to be a hard-edged gate or pulse, it'll convert any signal that crosses approx. 0.5V into a square.
On the rising edge of the signal on CLOCK the sequencer will advance to the next step until it reaches the end and then jumps back to the start.

REVERSE (you guessed it) reverses the direction of clocking but also (importantly) inverts all 4 address bits. REVERSE has a jack input and toggle switch. This jack input, like all the left hand side jacks, converts anything above 0.5V to ON and below that to OFF.
The toggle switch inverts the logic of the input so with the switch down a gate enables REVERSE mode and with the switch up REVERSE is on until a gate turns it off. With nothing plugged in it works as a manual control for REVERSE.

LOAD also has a jack and toggle switch but this toggle switch works a little different to the other inputs. With the switch down the current binary address is loaded once on the rising edge of the signal on the LOAD input (Think sample and hold but for a binary address). Patching a gate output from one of the steps to LOAD can be used to set the length of a clocked sequence.
Patch gate 9 to LOAD for an 8-step forward-clocked sequence, for example.
With the toggle switch up and nothing patched into the LOAD jack the sequencer will follow the binary address only and ignore whatever you have plugged into CLOCK.
With a signal plugged in and toggle switch up the sequence follows the binary address only while the input is high and clocking can resume when the LOAD input goes low.

BINARY ADDRESS:
The jacks and switches labelled 1xxx, x1xx, xx1x, and xxx1 make up a 4-bit binary word that is decoded into a position from 1-16. The sequencer will jump to this position when LOAD is activated.
The binary address of each step is printed on the panel at the top of every column.
0000 = step 1
0001 = 2
0010 = 3
1000 = 9
1111 = 16, etc.
When REVERSE is active all bits are inverted so:
0000 -> 1111 = 16
0001 -> 1110 = 15
0010 -> 1101 = 14
1000 -> 0111 = 8
1111 -> 0000 = 1
This is fun for mixing up a sequence driven by the binary address periodically.

The STROBE input was a leftover feature from the original gate/trigger seq idea that turns all the outputs on and off. Anything above approx. 0.5V patched here enables the sequencer outputs and anything below that holds all outputs at 0V (or -5V if that output's range switch is set to "-5 +5V")
If, for example, you send the same signal to the CLOCK and STROBE inputs the outputs will have the same duty cycle as the CLOCK signal and you now have a gate/trigger sequencer where the knobs control trigger amplitude.
Note that the CLOCK and LOAD functions will still carry on in the background while a signal patched to STROBE is low but the sequencer numbers won't light up so you might not know where you're going to end up when it comes back- surprise!
STROBE has no effect with nothing patched in.

Each step is a column of 6x knobs with a jack socket at the bottom and each row is it's own output channel. The output channels each have their own RANGE toggle switch: up = -5V to +5V middle = 0V to +10V down = 0V to +5V.
The jack socket at the bottom of each step provides a gate output for that step when it is active. If you use this jack as an input then that step will be forced active and summed with the current step and any other forced steps.
Note: doing this to many channels at once will produce outputs floating around the upper end of 0-10V no matter where the range switch is set.

The final two outputs at the bottom-right of the module are A+B-C and D+E-F, the sum and difference of 3 outputs each. These outputs ignore the RANGE switches of the individual channels and treat them all as 0-5V.
Eg. if the current step is:
A = fully clockwise
B = fully clockwise
C = fully clockwise
A+B-C = 5 + 5 - 5 = 5V

A = 12 o'clock
B = fully counter-clockwise
C = fully clockwise
A+B-C = 2.5V + 0V - 5V = -2.5V

These outputs ordinarily have a max range of -5V to +10V but if using the gate outs as inputs and forcing multiple steps on at once you might get lower than -5V depending where the knobs are set but more likely to hover around the upper end and/or lose some info to clipping.

https://isaacbeers.square.site/product/bigger-dumber-sequencer-16-step-version-/22