PROTIS 1™ V2 Guitar Effects Development Board
The PROTIS 1™ V2 is the premier Guitar Effects Development Board for DIY pedal builders and enthusiasts.
- Organize and stream-line your design experience.
- No need for constructing repetitive power and input/output wiring.
- Expand your prototyping with Prototyping Module Boards.
PROTIS 1™ V2 Features
- 1,660-point breadboard prototyping space
- Stereo Input and Output jacks for easy guitar and amplifier testing
- TRS Expression Input jack for developing with an expression pedal
- On-board positive and negative power options
- True Bypass Stereo switching for easy on/off floor testing with other effects chains
- Six (6) potentiometer interface terminals
- Two (2) toggle switches
- Audio-Frequency Oscillator with a frequency adjust trimpot for on-board test signal generation
- Propped up from the bench surface with six (6) rubber feet
- Modular Prototyping Board space for customizing your prototyping experience.
- [Optional] 18VDC Power Supply
- [Optional] Male-Male prototyping jumper wires
I. Power
The PROTIS 1 V2 hosts four (4) power rails (+18V, +12V, and +9V), the latter two are made live by removable jumpers.
The +12V and +9V rails have their inverted counterparts (-12V and -9V) which are made available by their respective jumpers.
Half-voltage DC biasing for single-supply circuits is accessed by configuring the Reference Voltage Select header.
Power is easily accessible from the POWER BUS headers to the right of the breadboarding space.
*Recommended Power Supply: +18V DC center-negative polarity. This can also be provided by an 18VDC port on pedal power bricks, like the Voodoo Lab ISO 5 for example.
II. Signal Flow
Signal flow is identical to how it works in most pedals: right to left! The guitar’s input signal is applied to the right-side 1/4″ jack and the output is taken from the left-side 1/4″ jack.
Two slide switches in the lower-right hand corner of the board carry out True-Bypass operation on two separate channels – allowing you the ability to design Stereo Effects.
The LEDs next to each switch serve as indicators for when the breadboarded circuit is “engaged” (ON) or “disengaged” (OFF).
When the circuit is “ON” the input and output jack’s Tip signals are routed to the I/O BUS headers on the left and right sides of the breadboarding space. The input guitar signal and output FX signal can be connected to the breadboard using jumper wires from the I/O BUS headers.
Stereo effects can also be developed using the PROTIS 1™ V2 by utilizing the “ring” connections on the I/O BUS headers. Operate the additional channel with the RIGHT CHANNEL BYPASS SWITCH.
III. Potentiometer Interface
Six (6) Potentiometers Interfaces are available for use on the PROTIS 1™ V2!
Jumper placements on the 5-pin configuration header allow you to minimize the wiring needed for using each potentiometers.
IV. Auxiliary Devices
The PROTIS 1™ V2 offers three (3) auxiliary device sections, including:
- Two (2) SPDT ON-ON toggle switches
- One (1) TRS Expression Pedal Input Jack
- One (1) Audio-Frequency Oscillator with frequency adjust trimpot
Each of these devices are accessed by the corresponding BONUS BUS and TOGGLE BUS headers along the left side of the breadboard prototyping space.
An area for storing un-used jumpers/shunts is available just next to the external poteniometer area to serve for a cleaner bench space.
V. Modular Prototyping Boards
The PROTIS 1™ V2 provides the ability to customize your prototyping experience by allowing the ability to add Modular Prototyping Boards.
Specially designed Module Boards are available, like the Dual Jacks Module, Selector Module, Eurorack Module, and PIC Microcontroller Development Module.
The design is adapted to be perfboard-friendly, so you can also build your own modules!
