PedalPCB Thermionic Distortion
The Thermionic Distortion provides searing British-flavored high gain tones through any amp.
Pedalboard friendly design, 125B footprint with top-mounted jacks.
Controls
- Bass – Controls the bass frequencies
- Treble – Controls the treble frequencies
- Presence – Controls the upper mid-range frequencies
- Volume – Controls the output volume
- Gain – Controls the amount of gain
- Tight – Controls the pre-gain low end frequencies
Specifications
- Updated layout using 1/4W resistors
- Designed for a 125B enclosure with top-mounted jacks
The company, product and service names used in this web site are for comparative purposes only. All trademarks and registered trademarks are the property of their respective owners. This product is not manufactured or distributed by Friedman Amplification, maker of the Friedman Amplification BE-OD.
PedalPCB is in no way affiliated with Friedman Amplification.
| Weight | 0.3 oz |
|---|---|
| Dimensions | 2.25 × 1.95 × .5 in |
| PCB Thickness | 1.6mm |
15 reviews for Thermionic Distortion
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The Seventh Mixolydian –
Great layout
Richard Couchman –
Works like a charm! Great high gain tones with no noise, even through a clean amp!
Tom –
Great pedal. Was my favorite dirt pedal until I found the Dirty Sanchez.
Steve (verified owner) –
Sounds fantastic! Layout is clean and easy to build.
John (verified owner) –
Sounds fantastic
DollyClonesFX –
Awesome clone of be-od circuit, high quality pcb. Thanks.
ngleon777 (verified owner) –
This is hands down one of the best sounding pedals that I have ever made. Fantastic sounding and highly recommended!
d.p.allegre (verified owner) –
Great mid to high gain tones. Very nice layout. Used a pre drilled bare enclosure from tayda that fits perfectly. Cost of the build was about a third the cost of a be od.
adamiler (verified owner) –
Killer pedal. Easy build. Great board layout.
brianthornock (verified owner) –
Works great, sounds amazing, has become my go-to high gain drive.
Angershark (verified owner) –
Got to play through the original pedal and loved it except for the price. I saw it on here and just had to build it! As far as I can remember it’s pretty close. My best build and favorite of all my pedalpcb builds.
zztothnyc (verified owner) –
The pedal is exactly what I expected: turns a clean amp into something that really closely approximates a high gain Marshall sound. Instead of trying to find the amp that has the perfect cleans and perfect distortion channel, I just decided to build this pedal and use it with my Peavey Classic 50 410. I couldn’t be happier. I’m not sure how close it is to the original pedal, but it can exactly replicate the drive channel of my first-generation Marshall Valvestate. The PCB itself is great quality and the instructions are straight forward. Like others mentioned, there is a perfectly fitting, pre-drilled Tayda box.
Rixroxx (verified owner) –
This is such a very good heavy pedal that I have been looking for. Good for 80’s sound. Sustainful. I was right when I chose this over Dirty Sanchez (just my preference). I suggest to those who will build this: I have acquired like almost a dozen of TL072. From experienced, I auditioned this chip and they are not consistent with the quality. One chip will sound different from another. I noticed some TL072 chip do not sound full and sometimes can be bit noisy. So I ended up choosing those ones that were operationally quite, fat and with good sustain. So my suggestion is if you can get a dozen of it, audition it first. I have a bare DIY TS9 circuit that I used in auditioning this chip. After doing it, these Thermionic Distortion is a bomb!
ricardorx (verified owner) –
It is an excellent marshal in a box, it responds very well to crunch and high gain tones.
Paul Barrette (verified owner) –
This pedal sounds great and is quieter than my other metal pedals. I used cloth wire throughout not sure if that makes a sonic difference. The trim on the inside will give you huge gain maybe more than you need. I have it dialled back most of the way. This is a very usable pedal. The pcb is well done no issues assembling it. I played a deluxe beod and this clone sounds pretty close in tone and maybe a bit more gain.
Pb