Category: Boost

Request: Xotic EP-Booster

I made this one with an on-board pot in mind (an Alpha 90 degree PCB pot will fit nicely on the trace side of the board, just remember to isolate the back of the pot). I’m also fairly sure it’ll fit in a Hammond 1590A enclosure, at least if you omit the switches.


Update (18.12.2012): Now verified as working, thanks to Freppo and Steve.

Updated: 21 December, 2012 — 22:40

Request: BYOC TriBoost

Three boosts in one box. You choose which one to use by means of a rotary switch. Looks like it’s the AMZ Mosfet Boost, the LPB-2 and the Dallas Rangemaster.

I was tempted to add a separate gain/volume control to each boost and it would have also been cool to have some sort of stomp toggle switching (maybe CMOS?) ¬†between each, but I decided not to complicate things and just leave it as is. I did however add 1M resistors to the output switching as I’m fairly sure those capacitors hanging there could produce some noise when operating the rotary switch. Feel free to leave them out if I’m wrong, though (R15-R17).

I did add some textual description on how to wire the indicator LED(s), but by now I’m quite comfortable with most wiring and I can’t really remember how I used to have to wrap my head around this stuff. If you’re just getting into this hobby and get a headache trying to decipher what I mean I’m really sorry. Drop me a line and I’ll consider adding some more illustrations.

Updated: 8 August, 2012 — 00:32

Request: Music Man on-board preamps for bass & guitar

Thanks to Bajaman over at freestompboxes for this great project. Here are vero layouts for three slightly different Music Man on-board preamps.

The Sabre II for bass:

The Sabre II for guitar:

The Stingray for bass:

Update (11.10.2012): Built the guitar preamp tonight but have yet to decide where I’m going to use it. Works great.

Update (09.09.2012): Built the Stingray bass preamp tonight and it works, so verified.

Updated: 21 December, 2012 — 22:08

2-in-1 TS-derivative overdrive & boost

I put this thing together as a gift for a relative recently.

The overdrive part is something I derived from several different circuits; the “Eternity”, the “Zendrive”, the “Timmy” and R.G.Keen’s article on the technology of the “Tube Screamer”. The input buffer was borrowed from the “Centaur” and a blend pot was added to the output to allow a mix of over-driven and clean signal.

The output from the overdrive (either effect or bypass signal) goes straight to an AMZ Mosfet Boost for some extra… well, boost. The two effects are separate and can be engaged individually.

As a side note I tried something a little different this time. I wanted to try board-mounted pots to secure the boards to the enclosure. I used them for the “Drive” and “Tone” pots on the overdrive, and the “Gain” pot on the boost.

Updated: 21 December, 2012 — 21:09

Request: OKKO Diablo Boost+

As requested here’s the a vero layout for the OKKO Diablo Boost+ based on a schematic drawn by Kusi. I chose to divide the effect into two separate vero boards. If you only want to build the OKKO Diablo there’s a vero layout for that effect, but if you also want to build the Boost+ extension there’s a separate boost stage vero layout.

If you decide to build the full Diablo Boost+ effect wire the output of the main board to a second DPDT/3PDT switch that either bypasses or engages the Boost+ stage. Remember to also connect the A and B points on the main board and boost stage board together.

I just like to add I haven’t actually built this, so as of now it’s still unverified.

Updated: 21 December, 2012 — 20:58
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