jdm pedals custom 

Whether you want a small change to one of our standard pedals or envision a tone machine that will blast you off into a new orbit, drop us a line. We already hand build every pedal we make, so custom work is not terribly expensive to plan in. Minor changes (knob types, jack positioning) can often be done free of charge. See our "menu" of options (just a guide) below after you have a look around.
We specialize in fuzz/overdrive/distortion, but also build a variety of analog circuits and utility boxes (tremolo, compression, splitters, loop selectors). Fill in the custom quote form below and we'll get back to you with what is possible!
Custom finishes vary from plain sanded or hammerite painted enclosures with transferred and sealed labels to full-color UV printed graphics. Custom designed UV graphics require design work on Affinity Designer etc. if you are adept at visual design, we can work in your own design.
Guitar effects pedal called Octave Loop Switching Tool with controls labeled Loop, Octave, Blend, Hi Cut, and a footswitch
Electronic guitar effects pedal with a black background and green leaf design, four black knobs, a gold switch, and a gold footswitch. 
Email me and describe what you have in mind. Please note any physical design requirements you may require, such as enclosure size, jack placement, control spacing (if there is something unusual). If you have a particular visual design in mind you can forward me images via email later.
An orange guitar effects pedal labeled '1923 Custom Fuzz' with four brown control knobs labeled 'Gain,' 'Bass,' 'Mid,' and an unlabeled knob, set against a dark background.
Guitar effects pedal labeled 'Honey Bucket' with cartoon dog illustration, four control knobs, and two footswitches.
Guitar effects pedal labeled ELEKTAVIA with black control knobs, toggle switches, a skull and crossbones graphic, and text indicating settings for fuzz, octave, and top cut.

custom pedals gallery

Two green guitar effects pedals with white knobs and Japanese labels. The pedal on the left is labeled in Japanese and has controls for range and boost, with a switch in the middle. The pedal on the right is labeled with English words like fuzz, tone, vol, and gate, and has a switch labeled Zonk.
A guitar effects pedal with black control knobs labeled BOOST, TONE, VOL, FUZZ, and knob labels in purple, with switches and input/output jacks.
Orange guitar effects pedal with four black knobs labeled Gain, Volume, Mids, and Freq, and three toggle switches labeled Oct, Boost, and Top, Cut. The pedal has a footswitch and is branded Dr. Olive, custom JDML pedals.

custom pedal info & contact

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 - Basic custom price is $225. A basic finish can be sanded aluminum (see examples further below!) or painted in hammerite and decal labeled. Color prined enclosures I have to design and order, and the cost is $50 (most designs in the top row above). The added cost is design time and the price of a UV printed enclosure. This process takes 4-6 weeks from order to arrival, then come assemblyt, so the total time is about 6-8 week to be out the door.

- Adding a footswitch/transistor switch is $25 per (this factors in both parts and time) Extra controls beyond basic pedal circuits we offer are also $25 per. Extra input/output jacks are $35, again time/parts - this makes the internal layout quite a puzzle, but so far it has worked out in all cases!

- All parts in the basic offer are modern, high tolerance, low noise resistors, capacitors, etc. Vintage components (polystyrene capacitors, paper-in-oil caps, carbon comp resistors, etc) vary in price and availability. Please ask for price and availability, and I’m glad to talk about the tonal qualities and relative merits via email.

- I have a wide selection of transistors, with some great vintage germanium and silicon at no added price when I make the selection. If a specific transistor type is requested, I need factor in the cost of sourcing that type. Generally I can get a lot of the black glass germanium for about $10 a piece (OC45, OC71, AC125, AC128, 2N404) but there are types that are rare now (NKT275, OC75, OC44, OC81, etc) and these I have to price at the current market. These are the most sought after transistors and *fair warning*, OC75 are $40 each NKT275 over $100 each if even available (June 2025).

This is just a basic overview, but if you've ever seen a fuzz pedal that costs $1000 and thought, "What the heck is in there that costs so much!?!?" - well, there you go: rare, hard to source transistors at $100+ times three, all vintage parts, a custom painted enclosure, and all the time to put this together with expertise and loving care :) Don’t let this scare you off! I love doing this, as you can see from the multiple examples above. We always get a good plan going!

A few more custom pedals, going back a few years. “Minimalist” finishes, custom designed “Project Mercury” and a bold colored Vindicator pedal (old name was Tonemaster)

Three guitar effects pedals on a wooden surface. The top pedal is labeled 'HUMDINGER' and features various knobs and switches. The bottom right pedal is labeled 'TONEMASTER' with several knobs. The bottom left pedal is labeled 'little SteamEr' with a few knobs and a switch.
Guitar effects pedal labeled 'Bliss Bomb' with various control knobs and switches for adjusting sound effects.
Two guitar effects pedals on a black background. The left pedal is labeled "CAUSE & EFFECT TREMOLO" with knobs for RATE, DEPTH, PREAMP, and VOLUME. The right pedal is labeled "Blue Velvet" with knobs for VOLUME, GAIN, VELVET, and VIBE.
Orange guitar effects pedal labeled TONEMASTER with various black control knobs and metal footswitches, used for sound effects and tone modification.
A guitar effects pedal labeled 'Project Mercury Stonemas Interplanetary Fuzz' with five black knobs, toggle switches, and footswitches, mounted on a surface.
Two guitar effects pedals labeled 'STONEMAS Octave Boost' and 'KICKSTER Octave Boost' with black knobs and jacks, positioned next to each other, with a small painted rock figurine with a hat and scarf in the center.
Green electronic musical instrument with various knobs, switches, and buttons, labeled 'The Soundmill', with wooden side panels.
Guitar effects pedal named 'Double Steamer' with two channels, each having volume and steam knobs, a clip switch, and a roast knob. There are also two cartoon-like graffiti drawings of hot sauce bottles near the switches.