I'm an amateur guitarist, self proclaimed nerd. Mix the two and you get a pedal builder eventually. I started making my own pedals a couple of years ago with the idea of replacing all my purchased ones with self made. Thought I'd start sharing the adventure as a pay forward as most of my makings are from the help and mix of ideas from others that give their time to do so. Over time i hope to cover a few things I've learnt along the way and share some of the pedals I come up with.
Thursday, January 30, 2025
WARLOCK- Steampunk
Sweet Honey Deluxe - Steampunk
Tuesday, January 28, 2025
Memory Man with a PT2399
So I finished a couple Dirtbabies lately, one for a friend and one
for me.
It's simply the BEST PT2399 delay I've built.
I
changed C10 (1,5nf instead of 1nf) and C12 (150nf instead of 100nf)
for less noise and a very slightly darker tone (still quite
bright!)
R4 is about 30k (raising C12 raised the volume also),
and R35 is 56k. C14 is a 47uf tantalum (I read in the notes from
valvewizard that using a tantalum in that place was better, so I keep
doing it with every PT2399 circuit I build)
The first
opamp is a BB OPA2134 and the second one is a OP275.
I
added a charge pump to run it at 18v (much better in my opinion!) and
also added a couple things:
- a tone switch that adds another
1,5nf in parallel with C10 for a much darker delay
- a slam
footswitch with internal trimpot accessible from behind, to decide
how fast it ramps towards oscillation.
I t's
seriously not a difficult build, as long as you take your time to
plan everything well.
I'd recommend to socket all opamps
and PT2399 of course, but also :
R4 (feedback resistor. In mine,
33k)
R35 (mod rate. In mine 56k)
R37 (mod depth. Kept it
stock in mine)
C8 (just in case, cf build doc. Stock in mine)
C9
and C10 (in mine C10 is 1,5nf, helps with the noise, though it cuts a
tiny amount of treble response. Still bright enough for me. Far
brighter than the analog mode of my Echo Park, which is supposedly
modeled after a DMM)
C13 (will alter the way the repeats
degrade, keeping more treble in a tape-like way, cf build doc)
And
I definitely recommend a charge pump to run it at 18v. So much better
in both my builds!! (and that's the reason I use a IR9022 instead of
TL062 for the LFO, since 18v is the maximum voltage allowed for
TL062)
Blues 2 Rock - Protein
I'm starting to get very happy with how a pedal I've made looks. The enclosure is "silver hammer" 1590bb2 from Tayda. Acid etching enclosures and patching cock-ups with plates has led me think this one up. I just recycle old aluminum flashings, whatever looks like it will work. Most polishes up Ok. Some are a alloy and for that reason I started converting my hydrochloric acid to Ferric Chloride. It's relatively simple and I've found works well, and with other metal such as brass. It's all just hacksaw and file and plenty of patience. Drew it up on Inkscape and went from there. For now this is where I want to head on the look, which is becoming somehow a big part of the whole experience.
Monday, January 27, 2025
The RAT - Pack
Along with the Big Muff ( now replaced with the Scarab Deluxe) was my main dirty dirt pedal and It will always be on my board.
I found the build info for this one via some help on forums from Beavis Audio Research. Link is here Beavis Audio 4 Knob Rat .
This one involves producing 2 PCB's, The main circuit and a daughterboard with different clipping options. I managed to squeeze it all in a 1590BB, but it was tight and I'd use a 1590BB2 next time if I make another like this one. On that note, I have also discovered a vero layout for this on Sabratone proco-rat-w-lots-of-options . Using a 5T rotary switch for clipping selection. With a vero size of 20 x 14 I'll most likely try for a smaller enclosure, probably have to 125b with the big 5T switch, 4 pots and 2 switches.
Again I've tried Acid Etching with reasonable success this time. Diluted the brew, used nail polish on any visible weaknesses to the mask. Fairly happy with the finish. You'll see I'm a bit of a Stranglers fan with Rattus Norvegicus in the mix. Some hand painting - clear coat. This one is serving me well.
I've placed the clipping LED's on top as well, lighting up more the harder you play
Obsessive Compulsive Distortion
I've owned an original version 3 for many years. My general go to prior to sweet honey showing up. Definitely a pedal worth having. The circuit was found in vero from again Mark @ tagboard effects. Parts are easy and this sounds just like my original. Well maybe a slight difference. My components vs theirs is going to have some undoubtedly. A recommended build. Read the comments ( as I always do ) version 3 seems most popular.
Artwork turned out a bit better etch-wise, although the OCD got a bit munted and again a remake planted on top solved the problem.
Silver Klon
Up until now my KLon has been the NUX golden horse. Almost always on - a pedal I don't want to part with. The NUX is actually very good. Switchable between gold and silver versions and also able to switch between true bypass or buffered when not on. I keep it in buffered at the beginning of my chain.
The circuit is originated from build your own clone Silver pony in vero layout from Mark @ tagboard effects along with a few other Klon options. I seem to almost always opt for the silver version on the NUX so that was my choice.
Again my etching has turned out rather scratchy, but given I wanted an aged celtic look it fits well.
The firehorse text was fairly illegible, so began me starting to fix things to the box as I decided to cover it with a remade bit of aluminium.
I did find some extra noise issues, and would recommend some shielded(grounded) input and output wires here and get the right voltage doubler. One drawback here is I had to to 125b enclosure due to size of vero board, so it takes up more room than the little NUX. Other than that works great.
Heartthrob Tremelo
Phaser with Script MOd
An MXR Phaser with script mod, includes a wee circuit which allows the 2 LED's at the top to oscillate with the phaser speed. 2N5952 transistors are not essential. I've used a quad of matched 2n5457's from Tayda electronics and it sounds equal to my real thing. That jfet tester is essential too. While I had it in working order with the 2n5457's, I also tested J113's, and /j201's with good results. Just a bit of tweaking to the bias trimmer for each to find the phase zone. This has replaced my original.
A new phase of box design. The Tayda prints were great, and I was honestly just wrapped that I cracked the Inkscape/ Scribus solution to printable PDF's. But they weren't Shed Peddy enough for me. I wanted more industrial and hand-made looking. Having already done a bit of etching with PCB making. I had a half bottle of hydrochloric acid left over from when I painted the garage floor, and I still had an old toner printer in a cupboard store. Watched some you-tube how to's. This is my first attempt.
Etch design- Inkscape. Etch job was below average for me and its .taken some experimentation with a stopwatch about how long I spend ironing on the mask and how long and strong a solution I etch with. I still get some rough edges and bits where it gets through the mask, but I find it really adds to the handmade in the shed look I think I'm heading toward