Akashic Guitar effects circuit lookup
MIDBASSBOOSTTIGHTTREBLE

Enclosure not stated · 5 knobs

Tagboard Effects

Friedman Buxom BoostVerified

Based on the Friedman Buxom Boost· 3 other boards clone it

Category
Boost
Controls
Mid · Bass · Boost · Tight · Treble
Difficulty
Medium
Build
Vero· 23×24· 53 cuts, 23 links
Layout
Verified · Tagboard Effects marks it as built and working
Tags
Boost, Buxom, Friedman

From the post

"The Friedman Buxom Boost may be the most powerful tonal solution you ever put on your pedalboard. Like its namesake amp head, this pedal pushes a pure, clean signal to conjure the absolute most from your tone. Turning the boost control is your ticket to volume increase, pushing the front of your amp for thick harmonic overdrive, or balancing between two guitars with varying output. Whether you're after a tone tailored by its active mid, treble, and bass controls or the pedal's ability to achieve total transparency - thanks to its onboard EQ Bypass switch - it's all in there. We've even added a useful tight control for reigning in your tube amp's bottom end when boosted. As expected, every Buxom Boost pedal is crafted with the attention to detail and fine ear for tone that comes with Dave Friedman's name.

Your tone, just more of it. Just like the Friedman Buxom Betty amp head, the Buxom Boost sings with a completely clean tone that makes every nuance of your performance shine though. Simply flip the pedal's onboard EQ Bypass switch and you have a completely transparent signal, adding muscle to your guitar without ever changing its fundamental character.

Tuned for your rig. Though the Buxom Boost can be tonally invisible, its active 3-band EQ and powerful Tight control enables it to be anything but. With a stomp of a switch, you're able to balance the voice and output of two different guitars or push certain frequencies for a solo tone that cuts. With the Buxom Boost's high-quality components, you'll be astounded at how well it works for fine tuning your acoustic-electric guitar's plugged-in voice."

Schematic from Bugg available here.

There are 2 layouts (circuit runs at +/-9V).

The first one with the original bipolar voltage converter.

The second one without it.

You must then add the original or a regular one (not sure of the noise difference)

Schematic

This is a board layout, a drawing of where each part goes, and the post may link the schematic it was drawn from. Open the layout at Tagboard Effects. No KiCad fragment has been drawn for this circuit yet.

Parts list 39 rows

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Check before you build · 1 value the reader of this layout was not sure of
  • Counts on a dense board: 2K2 (7) and 100K (6) were tallied across overlapping tiles and checked against the full view, but a miscount of one is possible
RefValueNormalizedTypeNotes
Resistors 15
×110R10read from the layout by eye
×1470R470read from the layout by eye
×11K1kread from the layout by eye
×11K51.5kread from the layout by eye
×72K22.2kread from the layout by eye
×14K74.7kread from the layout by eye
×410K10kread from the layout by eye
×215K15kread from the layout by eye
×322K22kread from the layout by eye
×233K33kread from the layout by eye
×139K39kread from the layout by eye
×447K47kread from the layout by eye
×6100K100kread from the layout by eye
×1470K470kread from the layout by eye
×11M1Mread from the layout by eye
Capacitors 11
×2120p120pread from the layout by eye
×11n1nread from the layout by eye
×12n22.2nread from the layout by eye
×14n74.7nread from the layout by eye
×110n10nread from the layout by eye
×322n22nread from the layout by eye
×2220n220nread from the layout by eye
×2470n470nread from the layout by eye
×110u10uelectrolytic; read from the layout by eye
×222u22uelectrolytic; read from the layout by eye
×247u47uelectrolytic; read from the layout by eye
Diodes 2
D11N41481N4148read from the layout by eye
D21N58171N5817read from the layout by eye
Transistors 1
×2BC639BC639read from the layout by eye
ICs 4
×1LT1054LT1054printed 1054IP; read from the layout by eye
×1TL072TL072read from the layout by eye
×1TL074TL074read from the layout by eye
×1TL431TL431TO-92 shunt reference; read from the layout by eye
Potentiometers 5
MidC100KC100kPotentiometerread from the layout by eye
BassC100KC100kPotentiometerread from the layout by eye
BoostC100KC100kPotentiometerread from the layout by eye
TightC100KC100kPotentiometerread from the layout by eye
TrebleB100KB100kPotentiometerread from the layout by eye
Switches 1
EQSPDTSPDTread from the layout by eye

Other boards based on the Friedman Buxom Boost