Akashic Guitar effects PCB lookup
MASTERPRESTONEVOL

1590B · 4 knobs

Fuzz Dog· tweed55

Tweed 55

Based on the Formula 55

Category
Distortion· OD/Dist/Preamp
Controls
Master · Pres · Tone · Vol
Difficulty
Medium
Price
£40.80
Tags
od-distortion

From the vendor

Gloriously detailed recreation of a Fender Tweed 5E3 Deluxe preamp.

Shape your signal into those classic US tones with accurate feel and response.

The toggle switch flips between cleaner vintage tweeds and a high gain tube hotrodded model. Sweet.

You can go for the simple to handle but slightly pricier through hole FETs, or if you're handy with little fiddly bits you can save some cash with SMT units.

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 (depending on selected options), 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 will not take a battery. Knobs are not included.

Builds are only available with full kits including enclosure and vertical-mount pots. Please choose appropriate knobs.

Inspired by: Formula 55

Difficulty: Medium

PCB size: 50 x 50mm

Knobs required: 4

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 50 rows

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RefValueNormalizedTypeNotes
Resistors 24
R11M1M
R233K33k
R31M1M
R41M1M
R51K1k
R615K15k
R756K56k
R84K74.7k
R91M1M
R1068K68k
R111M1M
R121M1M
R131K1k
R1410K10k
R155K15.1k
R16100R100
R1710K10k
R1810K10k
R193K93.9k
R20100R100
R211M1M
R225K65.6k
R2315K15k
R24100R100
Capacitors 15
C11u1u
C22u22.2u
C322u22uelec
C4100n100n
C5470p470p
C64n74.7n
C72u22.2u
C822u22uelec
C922n22n
C103n33.3n
C11100n100n
C122u22.2u
C15100n100n
C16100u100uelec
C1747u47uelec
Diodes 1
D31N58171N5817
Transistors 5
Q1MBF4393/MMBF4393MBF4393/MMBF4393
Q2MBF4393/MMBF4393MBF4393/MMBF4393
Q3MBF4393/MMBF4393MBF4393/MMBF4393
Q4MBF4393/MMBF4393MBF4393/MMBF4393
Q5MBF4393/MMBF4393MBF4393/MMBF4393
Potentiometers 4
MASTER250KAA250kPotentiometer
PRES50KBB50kPotentiometer
TONE1MAA1MPotentiometer
VOL1MAA1MPotentiometer
Switches 1
SW1DPDTDPDT