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Simple buffer and phase inverter

10/16/2017

33 Comments

 
Here is a small utility board - a simple buffer followed by a phase inverter. You can take the output from either stage. It can be very useful if you are adding a clean blend to a circuit that is inverting the phase.
Picture
I recommend putting this in front of your main effect, but keep in mind that not all effects will respond the same with a buffer in front. I didn't include polarity protection, DC filtering and an output capacitor since this is meant to be used together with another effect (not stand alone).
Picture
33 Comments

Guitar to MIDI converter

6/11/2014

5 Comments

 
Here's something fun that I found at diystompboxes.com (original thread here).

It's a little circuit that converts your guitarsignal into MIDI language, so you can use your guitar with your favourite synths. :) It's monophonic, so it's not good for chords but works ok for single notes, leads, basses ect.

It requires a specific PIC chip and PIC programmer hardware (such as pickit2), software, and code (downloads at the bottom of the post) to be written onto the chip, so it's a bit harder to do then your regular stompbox. More info below.
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This is what you will need:
  • The PIC16F88 chip. It's an older 8-bit chip, but still easy to find (try ebay). The code is written for the chip so other PICs with not work.
  • The hardware required is either pickit2 or pickit3. I borrowed a pickit2 from a friend, but you can buy them here. Pickit is basically a interface that connects to your computer with USB and lets you read/write/erase programs to the PIC chip. Keep in mind though that the chip-socket may not have the same pinout as the chip. I used a breadboard to jumper the connections, as shown here.
  • There are alot of choices for the software (all free). I used PICkit 2 v2.60, but MPlab and PICgm Programmer are also good,
  • Code! Download the required code below. Only one of them is needed. Try the second one if you are having trouble writing the code to the chip with pickit2.
g2mplus.hex
File Size: 2 kb
File Type: hex
Download File

g2mpluspickit2.hex
File Size: 24 kb
File Type: hex
Download File

All the info is taken from the diystompboxes forum. I just put together the important stuff here, so all credits to the original contributers at diystompboxes. :)
5 Comments

CMOS Switching

6/10/2014

9 Comments

 
Here's a good circuit if you want to avoid those clunky and expensive 3PDT switches and use a soft-touch momentary SPDT footswitch insted, or something else, like a push button switch.

One could argue that this one isn't really suitable for vero (tons of links...) or worth the effort, but I think it's nice for those extra special builds and it's also much cheaper than using relays. It does take a bit of space, but it can fit in a 1590B (depending on the size of the effect circuit).
Picture
9 Comments

AMZ Buffer/splitter

4/10/2014

10 Comments

 
Here's a small little circuit that I have had lots of uses from.
Picture
Picture
A couple of Buffer/splitter for the studio.
10 Comments

    vero layouts

    All the layouts are Verified unless noted.

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