Controls
- Low Cut – Attenuates low frequencies
- Gain Trim – Controls the gain of the unit
- Level Low – Controls the overall output volume in Low Gain mode
- Level High – Controls the overall output volume in High Gain mode
- Gain Low (Internal Trimpot) – Sets the Gain in Low Gain mode
- Gain High (Internal Trimpot) – Sets the Gain in High Gain mode
- Voltage (Toggle Switch) – Selects between 9V / 27V operation
- Active/Bypass (Foot Switch) – Activates/Bypasses the pedal
- High/Low Gain (Foot Switch) – Selects between High Gain / Low Gain modes
Specifications
- Designed for a 1590BBM enclosure with top-mounted jacks
Documentation
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| Weight | .325 oz |
|---|---|
| Dimensions | 1.45 × 3.925 × 0.5 in |
9 reviews for Duocast
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jcjakeway@live.com (verified owner) –
Well worth the effort. Its very versatile. I can use it with amp that’s already cranked to give it some extra love, or as a basic preamp that other pedals can hit and push further into overdrive. I used a 79 hFE 2N404 PNP Germanium transistor for Q2 instead of a OC71.
Kev Thomas (verified owner) –
Great board, easy to build and some amazing sounds.
The footswitch wiring is straightforward, even if you’ve only ever built pedals using 3pdt pcb’s.
One improvement I’d suggest is to show the orientation of the transformer on the PCB. The TY141P has a black dot to indicate pin 1, but there’s no marking on the PCB. I had to check the schematic to be sure (bottom left hole on the screen printed side, with the transformer on the left).
Kev Thomas (verified owner) –
This is my second review for this pcb. I bought three and have so far built two using different Ge transistors; the first with an OC71, the second with an AC128.
This is obviously subjective, but with either transistor, the Duocast PCB forms the foundation of probably the best pedal I’ve ever played through, certainly the best I’ve ever built.
In 24v (or is it 27??) mode it is LOUD and impecably defined. There is no mushy-foggy-fuzz here. Putting a mildly dirty boost in front of it, and a little reverb and BBD delay after rook me to heaven.
I absolutely love this build. I sold the first two but I was ok with that, as I’d bought enough boards, components and 1590BBS enclosures to build three.
I will be keeping hold of the third one. They are shockingly good.
kroars (verified owner) –
Absolutely amazing drive circuit! Love the low/high gain channels and the 9v/27v toggle is just what the doctor ordered. This is one of those pedals that is just a blast to play with!
nmeadows (verified owner) –
Phenomenal circuit! A very easy build. I love having the ability to fine tune each channel with the internal trim pots. I can already tell this pedal will be an essential part of my rig from now on. There’s not a bad sound in this thing! Buy this pcb!! A++
jakeblakeworkman (verified owner) –
Love it. Tight fit on some of the electrolytic capacitors so check the size when you order them.
tcoffel (verified owner) –
Without a doubt the best pedal to date on my board. In other reviews I have mentioned I LOVE pedals, building, playing, etc. I play various styles, and have 3 main boards built that I play these various styles through. One of the boards is a classic rock kinda board, that ventures into hard rock for some sets I play. That board, has this pedal PERMANENTLY on there and it will never go away. One of the best sounding pedals for this style I have played TO DATE. I plan on building 1 or 2 more of these for my studio (permanent placement) and either a backup or a different board I may build based completely on this as the main / preamp.
Listen to demos, then build yourself one… you will NOT be disappointed, that is a promise!
Fritzypatzy (verified owner) –
This one is quite special. Quite an easy build. The sound is impressive. I built it with an OC71 but will try other transistors (definitely useful to socket it). I’m pretty sure this one will be a) a keeper b) always on… Definitely recommended.
christopher_s_morgan (verified owner) –
Love it! Similar in responsiveness to the Neurocyton (Soma 63) but with a much more woolly sound. Previous reviews are spot on, its an easy build with big reward! Used a vintage ~1960 2A92 PNP transistor with an HFE of 127 and it sounds beautiful and rolls back to a sparkling clean with lots of blooming mids and deep lows. Roll the volume up and it’s a rowdy, gritty, singing fuzztone/overdrive. Don’t get too hung up on the transistors, socket the board and try whatever you like, it’s a very accepting build. The production version of this pedal uses a modern transistor with varying HFE’s. It’s a definite keeper!