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Bought 4 pair of these over 30 years ago. Just opened the 2nd one from the package e few weeks ago.

With my growing inventory of wah project parts, goona but those Gerbers to good use. Thanks!

TBH&F, I found a LOT of them for cheap years ago before the prices went up and got quite a few. And considering they were stated as NOS at the time, I wanted to test every one to be sure they were good. Matching the for X100, Proposition or other Rockman circuit builds was just a bonus. There's...

I had to procure dozens of the 2N4399, 2N4398 & J201 JFETs to find the right ones. TTH 2N439x FETs are harder to come by and the SMD versions are difficult to find with the correct Vgs(Off) values. Out of the two hundred J201s I got, I was only able to identify about 3 dozen that fell within the...

If you also want a CHORUS effect, any Small Clone chorus circuit will dial in a valid X100 chorus effect. The original ECHO effect is a bit more complex than just a delay or reverb. It uses an MN3011/MN3007 combination, where the MN3011 has its 6 taps split between the L/R channels and the 6th...

Any 2N4399, 2N4398 or J201 will work, but it needs to possess a specific Vgs(Off) value of -1.0V @ ±0.10V ; preferably ±0.05V, for it to behave like the original circuit.

This is the way . . .

Here's a close up of a section of one of the diagrams from the first post in this thread. It's the X100 Mode switch mapping. It's what we used to build the pedals and it works. Of course you are free to wire it in any order you wish. Just keep the output pairs from the CD4052 chips (A1/B1...

PPCB has no full featured X100 project board. As @MarginalPlayer points out, PPCB's "Proposition" is a buffer-less Rockman Ultimatum pedal; which has the same distortion ranges, when so dialed in can match the EDGE or DIST, as the X100. But none of the CHORUS or ECHO effect. For those...

No worries. By the way, which PPCB test station are you using? I'm guessing it's the Auditorium Test Platform - just use the daughterboard with your build, ignore the Bypass section of the test rig and use the stompswitch on the daughterboard for testing. Given study and time, you got this. ;)

Just use the stompswitch daughterboard and run a short 6-wire ribbon cable or some small wires directly across as shown in the build document.

That still assumes the DMM is capable of discerning low pF values of accuracy.

In my experience with pF caps in analog pedal builds, I've noticed that the actual measured value is not that critical. Replacing a specified 68pF cap with a 100pF cap typically results in no audible change. And I don't trust any DMM with a cap setting to test anything below 1nF with any...

Ger Burgers

I recently procured a coupla of SmallBear's white 125B and 1590B enclosures and was disappointed by the way the paint chipped away so horribly around the drill holes. And the burring was an additional annoyance. (I was using brand new bits.) I prefer the enclosures from StompBoxParts or...

If I'm not mistaken, Digital Larry is letting it rest at SpinCAD Designer Ver: 0.99-1070 for the time being. Considering the massive changes it went thru to get from 1032 to 1070, I can see his point; allowing time for any issues to arise out of all the new code put into it's latest development...

@Chuck D. Bones - didn't you at one time produce a PCB for the Germanium Filter? (GEEP ?)

Dunno what's up with Moonn. 🤷‍♂️ I was able to place and pay for an order thru PayPal, but 2 months later, still not a peep from Moon after several email inquiries. I just requested a refund from PayPal and got it the same day.

Yes. Thanks. I saw no mention of an actual PCB being available. I'll re-read it after a bit. (Caught your DM too. Thanks!)

Fair enough! :) (I have no cryptogram books.) Counting out the remaining glyph characters, my best guess is that the rest says: "Transistor Swapper". :cool: