Akashic Guitar effects PCB lookup
SPEED

1590BB · 1 knobs

PCB Guitar Mania

Tremolo Factory

Based on the Zvex Seek Trem

Category
Tremolo· Complex tremolo effect
Controls
Speed
Difficulty
Intermediate
Price
€14.90out 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

Tremolo Factory Rhythmic has all its well-oiled machinery ready to produce a ton of tremolos effects with complex patterns.

Introduction

Are you up to this new industrial revolution? The purpose of this factory-board is to maximize the assembly of as many complex tremolos as possible. Now join us on this factory tour to observe the line production processes at work:

Via toggle, you can choose if either 4,6 or 8 potentiometers send an impulse to a decade counter that hits an optocoupler (or white clear LED and LDR – Easier to source) and then goes its way back to the Tremolo circuit. This awesomely unique and straightforward take allows you to manufacture your own patterns with a minimal amount of easy-to-source parts. The second momentary footswitch resets the pattern, so you’re not starting in the middle of it when engaging.

For a circuit test, the LEDs need to be placed in the PCB, or you will not get any Tremolo going on. We recommend using at least one metal shaft 9mm pot for the speed control, or the PCB will be held in place only by the toggle. We tried using 3 metal shaft 9mm potentiometers in our build. Another thing to keep in mind is that these 9mm plastic shaft pots require precise drilling and should be soldered with everything in the enclosure to allow a smooth rotation.

Now that you have seen how the making process works is your time to build this industrial setup. Are you ready to have a workshop of unlimited tremolos mass production in your own house?

Controls

Potentiometers

• POT4

• POT5

• POT6

• POT7

• POT8

• POT9

• POT10

• SPEED

Switches

• Stop

• Steps

For further analysis on this circuit take a look at this thread on Free Stomp Boxes Forum and DIY Stomp Boxes Forum.

For any technical questions regarding this build don’t forget to check out our Facebook Group and our forum at Free Stomp Boxes.

Tremolo Factory 1.2v – Building Docs

Tremolo Factory 1v – Building Docs

Tremolo Factory 1.1v and 1.2v – Drilling template

Tremolo Factory 1v – Drilling template

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 46 rows

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RefValueNormalizedTypeNotes
Resistors 21
R11m1M
R22m70.0027
R32m70.0027
R4510r510
R5470r470
R610k10k
R7100k100k
R8100k100k
R910k10k
R1010k10k
R1122k22k
R1233k33k
R1333k33k
R1433k33k
R1533k33k
R1633k33k
R1733k33k
R1833k33k
R1933k33k
R2033k33k
R214k74.7k
Capacitors 6
C210u10u
C3100u100u
C41u1u
C51u1u
C6220u220u
C1100n100n
Diodes 5
D01n58171N5817
D11n757a1N757A
D21n41481N4148
D31n41481N4148
D41n41481N4148
Transistors 2
Q1BS170BS170
Q2BS170BS170
ICs 2
IC1TL072TL072
IC2CD4017BECD4017BE
Potentiometers 1
SPEED100KBB100kPotentiometer
Trimmers 1
TRIM15K5kTrimmer
LEDs 8
D53mm LED3MM LED
D63mm LED3MM LED
D73mm LED3MM LED
D83mm LED3MM LED
D93mm LED3MM LED
D103mm LED3MM LED
D113mm LED3MM LED
D123mm LED3MM LED