Akashic Guitar effects PCB lookup
BALTEXTVOL

1590B · 3 knobs

Fuzz Dog· AmpegScrambler

Ampeg Scrambler

Based on the Ampeg Scrambler· 3 other boards clone it

Category
Fuzz
Controls
Bal · Text · Vol
Difficulty
Medium
Price
£28.80
Tags
fuzz

From the vendor

Intense, take-your-face-off fuzz from a tweaked Ampeg Scrambler-based circuit. The original maxed out at around unity gain, so we've incorporated an optional post-boost and master volume so you can really crank it if you want to. It doesn't colour the tone at all, simply makes it more awesome. Supplied with board-mounted pots with 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 only available 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: Ampeg Scrambler Difficulty: Medium PCB size: 50 x 37mm Knobs required: 2, 3 Enclosure: 1590B Direct Connect compatible (4 way) Download the INSTRUCTION PDF Ampeg Scrambler

Schematic

The schematic is in the vendor's build document, page 2. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 41 rows

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RefValueNormalizedTypeNotes
Resistors 19
R11M1M
R21M1M
R34K74.7k
R42K22.2k
R5470K470k
R64K74.7k
R7220R220
R88K28.2k
R9220K220k
R10220K220k
R111K1k
R1347K47k
R1447K47k
R152K22.2k
R16100K100k
R171M1M
R18390R390
R1910K10k
R204K74.7k
Capacitors 9
C110n10n
C24u74.7uelec
C31u1uelec
C44u74.7uelec
C5100u100uelec
C64u74.7uelec
C71u1uelec
C81u1uelec
C91u1uelec
Diodes 5
D11N41481N4148
D21N41481N4148
D31N41481N4148
D41N41481N4148
D51N41481N4148
Transistors 5
Q1MPSA13**MPSA13
Q3MPSA13**MPSA13
Q4MPSA13**MPSA13
Q22N3904***2N3904
Q52N50882N5088
Potentiometers 3
BAL50KBB50kPotentiometer
TEXT10KBB10kPotentiometer
VOL100KAA100kPotentiometer

Other boards based on the Ampeg Scrambler