Anyone tried the touch controller?

Boss used center ground, because DC jacks with normalization for outer contact are extremely common, so the pedal can switch the battery in and out of circuit depending on whether external power is plugged in. That's why. (They use the ring terminal for the input jack to connect ground for the circu...

I just tried a couple of random ones, and they seemed to work okay. They're cheap enough to risk a couple

I just whacked some ferrites in there. Deliberately open-ended

I went from a 40W pencil iron to a FX888D. The jump wasn't in temperature or ease of soldering, for me, so much as being able to use it a few seconds after turning it on (as opposed to waiting a few minutes), and also being able to change the tip if need be.

If I'm understanding you, what you want is to use the normalisation contact on a mono jack, where if nothing is plugged in, then the jack connects to the normalized contact.

Topic title is misleading -- as far as I know, teepee resistors are when you need to put two resistors in series to get the value you want for a one-resistor location on a PCB. (One resistor per hole, twist the other two ends together at the top and solder.) What he seems to be describing are standi...

What is even worse is when it's a board you designed, and you can't email someone else to bitch about why doesn't this work. At least with things like Mutable PCBs, there is a chance someone else had the same problem.

skautkurt wrote: ↑

Mon Dec 28, 2020 11:11 am

Not Alan, but I think the ALT just means ALTernative. So, if you chose against using the Tempcos, you have to put an equivalent "normal" resistor there, meaning just a normal 2kohm resistor.

Bingo.

The ALT resistor locations can be used instead. If you later get a tempco resistor, you can remove the ALT resistor and place the tempco.

Random voltage source and a comparator, to get random gates. Make it a CV-able comparator, and you can change the probability on the fly.

dooj, that looks like such a fun place to be! Also, what type of construction is the house?

Does the anode or cathode of the LEDs go into the hole marked '+' ?

ketem13 wrote: ↑

Sat Nov 28, 2020 6:58 am

I omitted the middle section with the 2X22m resistor and 100k/15k resistors.

If you add these in, does it work properly?

With absolutely no expertise whatsoever, I'd guess that the copper layer would be the nasty part -- lasers that can cut metal are more expensive than ones that can cut plastic (or plastic like material.)

I have a pair of tweezers I got from the supermarket, originally intended for use on eyebrows. I was later given some hard black plastic tweezers with various tips, but I prefer my stainless steel cheapy tweezers. For magnification, I have a lens on a gooseneck stand with a built-in illumination LED...

I did the same with guitars first - played them, then wanted to play one I had made so made an acoustic, then an electric and wanted to play it through stompboxes I had made nd through a home-made valve amp and speaker cab. Modular synths seemed like a natural step.... Guitar pedal DIY was a gatewa...

The Wave-Ctl and Sine-Trim trimpots are interactive, to a degree -- you'll need to adjust both at once to get the best sine wave. Make sure the panel pot is set to Sine before doing so (I don't wanna talk about it...) and flick it back to the other waveform after trimming the Sine to check how the o...

Use the values from the 0.2 schem.

Mutable Elements. I soldered one because I figured it might be good for making "more natural" sounds, but I didn't expect it to sound good to the point where I had to force myself to not use it in patches. RYO 3xVCA. It's such a humble little module, but it's a real workhorse, useful in damn near ev...

1 - Infinity means omit the resistor entirely. I put in the values in my schematic to comply with Mark's table, and the result should match the panel. I included the omitted resistor locations in case someone wanted, say, a dual vco with ramp on both sides and no square. 2 - I used 100kB everywhere,...

Michigan Synth Works did a limited run with thonkiconns. I think they're currently sold out.

The only good way of reading this schematic involves printing it out, and spending some quality time with some highlighters to try and trace wtf is going on. (Ibanez SB7 Bass Synth pedal.)

I use Seeedstudio's CAM file for generating 2-layer PCBs, with Eagle 7.5.0. All the holes above 3.2mm in diameter are in the Dimension layer, as is the board outline.

http://alanp.info/images/esppanel.JPG http://alanp.info/images/espguts.JPG I built a Mutable Shruthi XT with a Polivoks VCF, and liked the sound so much that I wanted to build a eurorack Polivoks VCF module. I only spotted that Erica Synths released their gerber files a few days after submitting th...