Germanium white and pink noise generator. I used a PNP transistor that I pulled from a damaged-beyond-repair transistor radio. Use your worst transistors for best results, silicon transistors need not apply! You can find the stripboard layout here.
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Nice!
Ive got a nasty AC128 with massive leakage, never would have thought about using it as a noise transistor.
If, just as a test, you were to connect up all those Sidekicks to one Hero, and see how it goes, I would definitely read your report with interestā¦
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hadnāt really thought about that . I was just doing 1 hero to 2 side kicks . but yeah I will give it a try . still a ways to go before I am finished .
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Completed this yesterday. Vactrol circuit to add voltage control to a non vc oscillator. The LDR part is connected in parallel with the tuning pots of the oscillator.
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Just finished a stereo mixer. It started as a āit is going to be an easy oneā and ended up being a āFFS thatās a lot of extra wires just for the stereoā
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Cute tiny little thing, gonna have to add this build to my infinite TODO list
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Nothing special today, just a panel to get 9V outputs to use with effect pedals, but there is also a semi-successful voltage inverter on board about which you can find more here.
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Came home from USA a few days ago and have just started looking into a MEGA-project - Neutronās QVCA, a nice and compact module that requires a steady hand as all componets are surface mounted (YAY!!! 
).
Got a soldering iron with a finest tip, a roll of 0.5mm solder and will have a go at the smaller 8-pin ICs before moving on to the bigger ones.
This is my first serious smd project (I am an experienced solderer) .
Also waiting for a package from Germany for Timo Rozendalās Dual AD/AR, though I may have some stuff in my storages so I can start now.
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Why do you need negative voltage for effects pedals?
Good Luck!
With my shaky hands I probably wouldnāt be brave enough to tackle something like this.
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Iām working on the CV inputs and thought Iād add a Voltmeter to the software which uses the LEDs of the sliders. This can come in handy for calibration purposes.
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Circuits that are based exclusively on PNP transistors have to be powered with -9V.
Yeah that makes sense, to permit a common ground for both types.
For anyone interested in Turing Machine modules, Iāve just uploaded a KiCad schematic and PCB layout for the Worng TM-LPG-X lowpass gate module to GitHub. The PCB has a couple of custom footprints allowing the capacitors of the LPG to be replaced by resistors (as in a Vactrol Mix) or by pin headers to connect to a panel mounted DPDT switch to swap between these modes. The Rs and Cs are mounted on the switch in this case.
Thereās also a design for a daughter board which allows an LPG (or a Vactrol Mix) to be connected simultaneously to both the PULSES and GATES headers of the parent Turing Machine. A switch and a gate CV input (active when the switch is OFF) control which of the connections is active. Together with the R/C switching this gives 4 modes of operation - either LPG or Mix, driven by either PULSES or GATES.
No pictures as yet Iām afraid - Iām rather behind making panels for my current batch of modulesā¦
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A little test module I designed and built today. It emits test CV and pulses.
4th row, right: Global voltage adjustment (-12V to +12V)
4th row, left: Emit global voltage while pushing the momentary button
3rd row: Coarse and fine adjustment of global voltage
2nd row: Global voltage adjustment with on/off toggle
1st row: 555 Timer sending 7V pulses, can adjust speed
The test lead with an alligator clip is an used Dremel bit with the head cut off!
Itās meant as a desktop box for testing, but itās Eurorack-sized, so I could mount it in a rack in the future.
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Hello, it is good to have you back ! 
some people do make music with test equipment
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Do you know of Hainbach?
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Hahah yes I do, the āit good to have you backā was a joke around the fact that he is starting his videos like thisā¦ the more I explain the more it sounds like it wasnāt a very good jokeā¦