Schematic is avaiable HERE.
Thursday 25 April 2024
Wednesday 24 April 2024
Monday 22 April 2024
Capitalist Death Cult Just. Give. Up. V2
Another contribution by Chris. This time he made some improvements and addons on a rare and wild Death by Audio circuit. Tone houndz...stay away!
Chris says:
Friday 19 April 2024
Thursday 18 April 2024
Wednesday 17 April 2024
Tuesday 16 April 2024
Sunday 14 April 2024
Saturday 13 April 2024
Wednesday 10 April 2024
Death by Audio Germanium Filter
A while ago. Chris Stelloh sent me a Death by Audio germanium Filter to trace. The trace went pretty smootly and I sent the schematic to Chris and he made a vero layout out of it. However, this circuit requires some transistor and diode picking to work as intended. See Chris's notes below...
Tuesday 9 April 2024
Capitalist Death Cult No One Wants To Work Anymore
Taking a break from the Madbean bonanza since Chris Stelloh sent a layout and a schematic of one his creations. Some words from the man himself: And yes, this layout is verified.
Here is something I came up with recently that shakes the pillars of heaven, via WAY TOO MANY cuts and jumpers.
Monday 8 April 2024
Sunday 7 April 2024
Madbean Dinky Drive
Schematic can be downloaded HERE.
Based on the pre amp section of a Bad Cat Mini II which is supposed to bring some "Voxy" tones.
Saturday 6 April 2024
Friday 5 April 2024
Madbean Stank
Madbean pedals was a great resource and very educational when I started out with DIY circuits. The archives with old projects is quite impressive. So the next coming days you'll see some Madbean content (some well-known, some obscure). Let's start with something simple...STANK!
The schematic can be downloaded at Madbean Archives page.
Sunday 31 March 2024
EarthQuaker Devices Organizer
Chris just sent me an another Spin FV-1 based layout. And he verified it.
"This is a layout for the Earthquaker Organizer Polyphonic Organ
Emulator that I drew up using the Pedalpcb schematic. Two things about
this layout (which is verified - I have all ready built it):
1) it addresses the volume drop issue that was common in early traces of
this circuit. The pedalpcb board now has a 20k trimpot to solve this,
which I have simply converted to the 20k resistor that is on pins 13 and
14 of the quad op amp.
2) you will need some supplies - an FV adapter and the EEPROM with the
algorithm - which I would recommend getting from pedalpcb. PCB Guitar
Mania makes a clone of this but I did not see a listing on their site
for an algorithm chip or an SMD adapter. The FV-1 adapter board that
pedalpcb makes is quite easy to use and I would also recommend watching
DK Pedals' tutorial on YouTube for soldering the FV-1, as it was very
helpful to me. The EEPROM algorithm chip is available for about $6.00
and if you search 'Organ Donor EEPROM' you will find it. It is not
listed on the regular EEPROM menu. Also - 2x14 rows of pin headers will
be needed to go between the adapter board and your vero."
Thursday 28 March 2024
Frost Giant Electronics Black Gold
Traced by moushh.
This thing looks quite wild. With the gain control set at minimum, you have the stock Acapulco Gold gain setting. Turn it up and you'll have much way much more gain avaiable... The Bright control is an welcome addition, a simple adjustable low pass filter.
Sunday 24 March 2024
Friday 22 March 2024
1776 Effects RE-20 stripped down
Here is another great layout by Sebastian!
In his own words...
Just wanted to share a layout I did of the RE-20 circuit from the 1776 Multiplex Echo Machine. It seemed like there aren't a lot of options for delay effects with parallel, independent delay controls. For the sake of simplicity (and a layout that would fit in anything smaller than a shoebox), I haven't included either the speed-ramp circuit from the original Multiplex, or the modulation circuit from the Multiplex Jr.
Thursday 21 March 2024
Tuesday 19 March 2024
Devi Ever God Zilla
Another Devi dual pedal. This is basically a Vintage Fuzz Master going into Goddess Zero, so this is two unruly octave up fuzzes in this layout.
Monday 18 March 2024
Devi Ever Shoegazer
Had a request for this one...yes I know it is a Soda Meiser into a Thorns Peaker and could be built on separate boards but...those small Devi circuits is so much fun to draw.😏
Saturday 16 March 2024
Fulltone PlimSoul
Schematic is avaiable HERE.
Note that it is highly recommended to use a 10k pot for Sustain to avoid noise and dead spots in the sweep.
Monday 11 March 2024
Thursday 29 February 2024
Dead Air Face Disaster
Phew, February has been a wild month here on the blog so lets end it with a BANG. This one is based on Tim Escobedo's DIY classic, Ugly Face with quite a few added bells and whistles such as a optical LFO section, separate starve control for two of the chips and some tweaked values here and there.
Schematic is avaiable HERE.
Wednesday 28 February 2024
EarthQuaker Devices Dream Crusher
Traced by Unsound Circuitry, once again, thanks, mate!
It is a well known fact that this is a modified Ge Fuzz Face. The stock Fuzz control is ditched and replaced with a "Pre Gain2 control. It runs on normal power supply and is powered by soviet MP37B NPN germanium transistors. These are usually faily low gain and the current leakage is low. The bias trimpot is placed on the side of the board for easy moddong for an external bias pot.
Tuesday 27 February 2024
Monday 26 February 2024
Dead Astronaut Black Triangle Overdrive
There was an old unverified layout in the library that I wasn't too fond of. So here is a new one!
Schematic is avaiable HERE.