Akashic Guitar effects PCB lookup
GAINTONEVOL

1590B · 3 knobs

Fuzz Dog· lemmo

Lemmo Drop Drive

Based on the Lumpy's Lemon Drop / ZII

Category
Overdrive· OD/Dist/Preamp
Controls
Gain · Tone · Vol
Difficulty
Medium
Price
£26.40
Tags
od-distortion

From the vendor

Lovely little drive designed to emulate the classic and impossible to find Vox 4 and 7 series amps. What are they? Only an integral part of the guitar tones on The Beatles' Revolver and Led Zeppelin's II. What's not to love? Small, simple build that can be tweaked to suit your guitar with a small turn of the FET biasing trimmer. A little hotter? No problem... Wide ranging gain control and a lovely tone sweep make this very versatile. The kit is supplied with vertical-mount pots which have round shafts, so you'll need set-screw fitting knobs. If you want the PCB without parts there's a link for that at the bottom of the page. Partial kit: PCB, all board-mounted components, pots. Full kit: As above, plus footswitch and appropriate daughterboard/components for your selected bypass type (see Downloads section for details of those), jack sockets, DC socket, battery snap, hook-up wire, LED. Enclosure (pre-drilled) is available as an option with full kits, and can take a battery if desired with footswitch positioned 22mm higher, closer to the controls. Knobs are not included. Builds are only available with full kits including enclosures. Please choose appropriate knobs. Inspired by: Lumpy's Lemon Drop / ZII Difficulty: Medium PCB size: 50 x 20mm Knobs required: 3 Enclosure: 1590B Direct-Connect compatible (4-way) Download the INSTRUCTION PDF

Schematic

The schematic is in the vendor's build document, page 3. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 25 rows

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Resistors 9
R11M1M
R247K47k
R3470K470k
R422K22k
R51K1k
R61K1k
R71K1k
R810K10k
R9100R100
Capacitors 10
C14n74.7n
C210p10p
C322n22n
C4470p470p
C522n22n
C63n33.3n
C72u22.2uElectrolytic capacitor
C82u22.2uElectrolytic capacitor
C94u74.7uElectrolytic capacitor
C10100u100uElectrolytic capacitor
Diodes 1
D11N40011N4001
Transistors 2
Q1BC108*BC108
Q22N54572N5457
Potentiometers 3
GAIN100KAA100k
TONE100KAA100k
VOL100KAA100k