The JedsPeds AndyChad is a DIY guitar effects pedal kit: a JFET-based overdrive with three individually voiced modes, which the maker describes as an improvement on the original circuit it draws from. JedsPeds says the design compares to the Nobels ODR-1, with no endorsement or approval from any manufacturer, and the circuit came about when the designer grew frustrated with the Tube Screamer mid hump1. If you would rather buy a finished pedal than build one, JedsPeds also offers other kits as completed builds, such as the JedsPeds KAREN!!! and the JedsPeds Super Klone.
Sound and controls
JedsPeds describes the AndyChad as more than capable of high gain Gary Moore tones, or dialled back to let its full-bodied warmth shine through. The maker singles out the lower reaches of the drive knob, where he found early break-up and low-level crunch, and notes that it cleans up nicely with the guitar's volume knob and pick attack1.
The controls work as follows:
- Drive: the lower reaches give early break-up and low-level crunch1
- Tone: simultaneously adjusts treble and lower mids, to add crispness to the clarity or to mellow things down1
Because the design deliberately steps away from the Tube Screamer voicing, players comparing mid-humped and flat-mid overdrives may find the Boss SD-1 vs Ibanez TS9 Tube Screamer comparison useful background.
Kit versions and what you get
The AndyChad is sold in five versions, so you can buy as much or as little of the build as you want1:
| Version | What it includes |
|---|---|
| PCB Only | Just the plain PCB |
| PCB & Components | PCB with components |
| PCB & Components and off board parts | As above, plus foot switch, jacks, 9V socket and LED |
| Full Kit | As above, with undrilled enclosure |
| Full Kit & Drilling | Full kit with drilled enclosure; drilling is an optional extra with a small surcharge |
The Full Kit's enclosure comes undrilled. If you do not want to drill your own JP125B enclosure, the Full Kit & Drilling version adds it for a small surcharge1.
Building it
JedsPeds rates the AndyChad as suitable to an intermediate level builder: nothing too tricky, just a fair few parts to place. Because the circuit calls for JFETs, and thru-hole JFETs are becoming scarce, the board also carries pads for surface mount components1.
If soldering is not for you, the Pre Built Kit at £45.00 GBP (as of 26 October 2026) has the seller build the kit for you. There are no returns accepted on pre builds, but the maker gives a 12 month repair warranty and will repair a fault that develops1.
The name
The pedal is named after AndyChad, a guitarist the maker calls one of his heroes. AndyChad taught the maker to play guitar and supported the development of JedsPeds for around 20 years. As the maker puts it: "AndyChad is one of my heroes, he taught me how to play guitar so you've a lot to thank him for!"1
Other kits in the JedsPeds range include the JedsPeds High Pocket, the JedsPeds GOAT and the JedsPeds Gobbles.
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Questions
What pedal is the JedsPeds AndyChad based on?
JedsPeds says the AndyChad circuit compares to the Nobels ODR-1, and the maker notes there is no endorsement or approval from any manufacturer. The kit is a JFET-based overdrive with three individually voiced modes, which the maker describes as an improvement on the original circuit. It came about when the designer grew frustrated with the Tube Screamer mid hump.
How hard is the AndyChad kit to build?
JedsPeds describes the AndyChad as suitable for an intermediate level builder. The maker says nothing about it is too tricky, but there are a fair few parts to place. Because the circuit calls for JFETs, the board also includes pads for surface mount components.
Can you buy the AndyChad pre-built?
Yes. Alongside the PCB and full kit options, JedsPeds offers a Pre Built Kit at £45.00 GBP as of 26 October 2026, where the seller builds the kit for you. No returns are accepted on pre builds, but the maker gives a 12 month repair warranty and will repair a fault that develops.
What enclosure does the AndyChad use?
The AndyChad kit uses a JP125B enclosure. The Full Kit includes the enclosure undrilled, and drilling is available as an optional extra on the Full Kit & Drilling version for a small surcharge.
Does the AndyChad have a Tube Screamer mid hump?
No, and that is the point of the design. The maker says the AndyChad came about when the designer had become frustrated with the Tube Screamer mid hump and came up with this circuit instead. The tone knob adjusts treble and lower mids together, to add crispness and clarity or to mellow things down.
Who is the AndyChad pedal named after?
It is named after AndyChad, a guitarist the maker calls one of his heroes. AndyChad taught the maker to play guitar and supported the development of JedsPeds for around 20 years. As the maker puts it, you have a lot to thank him for.
Sources (1)
- AndyChad, JedsPeds
