Accidentally happened on your site awhile back and fell head-over-heels with the idea of reclocking old processors to squeeze new noises and textures out of them. Not neccessarily an electonics wiz myself, your tutorials provided a healthy dose of optimism and after nabbing a couple of 1799's from you I set off w/ a noise minded friend to modify one of my fave mutli-effect units, the Digitech DSP128.
Things were off to a great start as we grabbed some +5volt to power the 1799 and the proceeded to remove one of the crystal oscillators and feed the output of the 1799 back into the circuit.
Unfortunately, we selected the wrong clock to swap out and ended up modifying the update speed of the LED display.
https://vine.co/v/iYDiE0XXOrdhttps://vine.co/v/iYjhItht3KzUhh, ok...let's try this again shall we...this time with another clock:
The intention was the switch the original clock in/out as suggested in one of your 1799 tutorials but we were never able to get the original (or replacement) to work again.
However, the 1799 WORKED and enabled variable control of the clock speed!
I ended up deciding on a few different controls on the front panel for the manipulation of the clock:
1 X 10k Pot for Course Tuning
1 X 1k Pot for Fine Tuning
1 X SPST Switch shorting across the pins of the 10k Pot
1 X SPST Switch shorting across the pins of the 1799 Frequency Jumper
Not a whole lot of room left on the front panel for additional mods, but love seeing your "break out rack" of switches for further hacking.
Any suggestions on where to dig next to wrestle additional functionality out of these type of beasts?
Would be interested in any suggestions on where to poke in order to enable sample/ hold functionality or buffer looping.
Thanks for providing a great resource for circuit bending in addition to parts that facilitated this bend.
Will holler back with some sound samples soon.
Cheers,
lcl