Akashic Guitar effects circuit lookup
VOLGAINBASSTREB

125B · 4 knobs

GuitarPCB

NostalgiTone PlexAmp Single: Unleash Accurate Plexi Style Tone

Category
Overdrive
Controls
Vol · Gain · Bass · Treb
Price
see vendorin stock

From the vendor

Introductory Offer: Matching Plate + PCB — $11.95In stock and ready to ship — no wait.

Plate fits 125B enclosure

Description

Now available with a matching PCB control plate (fits 125B enclosure) for a clean, professional build. These pre-drilled plates are precision-aligned to the PCB layout, serve as excellent drill guides, and align with build documentation templates and Tayda pre-drilled enclosures for accurate, hassle-free assembly.

These are fabricated from durable 1.0mm PCB material, providing a rigid, substantial feel ideal for clean, professional builds.

These PCB plates are available for international orders, unlike our aluminum panel options. Plate color matches the product image.

The NostalgiTone Plexamp Single is meticulously crafted to emulate the legendary 1962 Marshall JTM sound. Whether inspired by the timeless tones of Hendrix, Jeff Beck, Gary Moore, or AC/DC, PlexAmp’s versatile Gain range and powerful Bass and Treble shaping controls provide all the sonic flexibility you need. Dialing back the Gain offers a subtle bluesy breakup while cranking it up delivers a mid-forward roar reminiscent of the “High Voltage” era of AC/DC.

• Easy Wiring: No more daunting wiring hassles! Say hello to beauty under the hood. Enjoy all-analog tones with modern features that will slip into your gig bag, ensuring you are always ready to unleash your musical magic.

• Available Components: We recognize the hurdles of component availability. Rest assured, we’ve carefully selected components for the NostalgiTone series currently available from today’s popular vendors.

Mainboard Dimensions – 2.10” x 2.12” – Perfectly sized for a 1590B or 125B enclosures.

Included with each PCB purchase. – (1) Mainboard, (1) wiring board, and (1) ribbon cable.

NostalgiTone PlexAmp Build Document

Order a drilled enclosure from Tayda (registration required)

• 1590B size – Drilled Enclosure Link

• 125B size (slightly larger) – Drilled Enclosure Link

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 28 rows

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ocr read from an image · sch paired from the schematic · fixed corrected by hand. Check marked values against the build document.

RefValueNormalizedTypeNotes
Resistors 8
R11M1M
R2470k470k
R34k74.7k
R4820R820
R55M15.1M
R7470k470k
R8470k470k
X11k8-4k7ocr1.8k-4.7k
Capacitors 10
C1220pF220p
C9100n100n
C2150n150n
C1047uF47u
C347pF47p
C4100n100n
C5470n470n
C64u74.7u
C747n47n
C8100uF100u
Diodes 5
D11N40011N4001
D21N9141N914
D31N40011N4001
D41N9141N914
D51N58171N5817
ICs 1
IC145584558
Potentiometers 4
VOLB100KB100kPotentiometer
GainA500KA500kPotentiometer
BassC25KC25kPotentiometer
TrebB10KB10kPotentiometer