Akashic Guitar effects PCB lookup
BOOSTCRUNCHLEVELTONEHI-GAINGAIN

1590BB · 6 knobs

PCB Guitar Mania

Pleximan

Based on the Carl Martin – PlexiTone· 1 other board clones it

Category
Distortion· Overdrive
Controls
Boost · Crunch · Level · Tone · Hi-Gain · Gain
Difficulty
Intermediate
Price
€11.90out of stock

Heads up Builders widely report inconsistent quality from PCB Guitar Mania boards, and whether a given board works is a gamble. Read recent forum reports before ordering.

From the vendor

Project overview

Inspired by Carl Martin´s original PlexiTone, this is probably the most Plexi-sounding pedal you will ever hear. Marshall Matters!

No one can deny the impact of the Marshall sound on the music we’ve been listening to throughout the years. It is so powerful that even non-guitarists started to incorporate these amps in their signal chain to add its character to their tone. You can’t really blame them, because the added value is undeniable. So what’s even better than a legendary-sounding amp? The same sound, but captured in a device that fits in the palm of your hand and won’t break your back or buck.

Introduction

The Pleximan is a circuit based on a genial plexi-in-a-box design from Carl Martin, but with few improvements. First off – the size. We managed to squeeze all the goodness into a compact board that you will be able to house in a 1590bb enclosure. Apart from that, we replaced the internal transformer with a charge pump. This allows the pedal to run on 18v from a 9v power source, which provides you with more headroom in your tone. To make things even more interesting, we made it possible for you to make your own version of this legendary unit that will include an extended tone stack. You thought that’s it? No way! Our version has replaced the original’s buffered bypass with a true bypass, so you don’t need to worry about your clean signal being affected by the pedal when you’re not using it. With all that out of the way, let’s have a look at what the pedal has to offer in terms of controls.

This ultimate Marshall unit includes switchable boost, as well as a channel selector for your crunch and hi-gain needs. The Pleximan comes with 5 potentiometers – HI-GAIN, CRUNCH, TONE, LEVEL and BOOST. The HI-GAIN and CRUNCH knobs let you dial in the desired amount of saturation for their correlating channels. The TONE control is just what you’d expect from its name – it lets you shape the tone of your distorted signal to your liking. With the LEVEL pot you are able to set the overall volume of the output of the effect unit. There is also the BOOST control which allows you to control the switchable boost when you need to cut through the mix during the solo you’ve waited the whole night to play.

With all the above said, what are you waiting for? Get that Plexi, man!

Controls

Potentiometers

• Boost

• Crunch

• Level

• Tone

• Hi-gain

• Boostsw Footswitch

• Channel Footswitch

Switches

• Boostsw

• Channel

For further analysis on this

Schematic

The schematic is in the vendor's build document, page 5. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 53 rows

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Resistors 20
R11k1k
R21m1M
R347k47k
R42k2k
R547r47
R622k22k
R722k22k
R847k47k
R922k22k
R10100r100
R111k1k
R124k74.7k
R134k74.7k
R144k74.7k
R151m1M
R1620k20k
R171m1M
R1810k10k
R1910k10k
R2011
Capacitors 17
C4330pF330p
C6470n470n
C768n68n
C8470n470n
C9220pF220p
C15100n100n
C16470n470n
C17100n100n
C52u22.2u
C10100u100u
C1110u10u
C1210u10u
C131u1u
C1410u10u
C1220n220n
C2330pF330p
C333n33n
Diodes 6
D13mm3MM
D23mm3MM
D33mm3MM
D41N58171N5817
D53mm3MM
D103mm3MM
ICs 3
IC1LF347LF347
IC2TC1044SCPATC1044SCPA
IC3TL072TL072
Potentiometers 6
BOOST50KBB50kPotentiometer
CRUNCH100KAA100kPotentiometer
LEVEL5KAA5kPotentiometer
TONE5KBB5kPotentiometer
HI-GAIN1MAA1MPotentiometer
GAIN1M1MPotentiometer
LEDs 1
LED1BIBI

Other boards based on the Carl Martin – PlexiTone