Akashic Guitar effects circuit lookup
VOLUME

Enclosure not stated · 1 knob

Tagboard Effects

EHX LPB1Verified

Based on the Electro-Harmonix LPB-1· 14 other boards clone it

Category
Boost
Controls
Volume
Build
Turret board
Layout
Verified · Tagboard Effects marks it as built and working
Tags
Booster, Electro Harmonix
Open the layout at Tagboard Effects

From the post

Original version:

and the updated parts values:

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 8 rows

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Check before you build · 3 values the reader of this layout was not sure of
  • 360R at the left (emitter to ground): printed clearly, unusual value (the LPB-1 normally has 390R)
  • 830K between base and 9V: printed clearly as 830K, unusual value (the LPB-1 normally has 430K; the first digit could be a 4 misdrawn but reads as 8)
  • 150nF x2 (green caps): read as 150nF at scale 10; the stock LPB-1 uses 100nF, so unusual
RefValueNormalizedTypeNotes
Resistors 5
×1360R360read from the layout by eye
×1100K100kread from the layout by eye
×1830K830kread from the layout by eye
×110K10kread from the layout by eye
×11M1Mread from the layout by eye
Capacitors 1
×2150nF150nread from the layout by eye
Transistors 1
×12N50882N5088read from the layout by eye
Potentiometers 1
VolumeA100KA100kPotentiometerknob not named on the drawing; marked 100K LOG, wired as the output level; read from the layout by eye

Other boards based on the Electro-Harmonix LPB-1