9V Power Converter Adapter for guitar pedals, MIDI devices
$
16.00
$
BUY NOW
Allows splitting, converting input and output polarities per channel, has built-in 9V linear voltage regulator, noise filter and digital voltmeter.
Description:
This adapter board has a million uses when you need:
Split one power supply between several guitar pedals or other utility modules, such as MIDI, which may have different input voltage and polarity
Provide stable 9V output with onboard linear power regulator (0.5A typical) and filtering circuit.
Monitor input or output voltage with onboard digital voltmeter
Primary features:
The adapter accepts one 2.5 x 5.5mm input barrel plug, as well as 2.1 x 5.5mm connected in parallel. It can be used for cascading or a simple pass through.
Four outputs are 2.1 x 5.5mm barrel type, similar to what you can find in guitar pedals. Connecting cables are common and easy to source.
Every input and output can switch polarity independently.
9V linear voltage regulator can be bypassed.
LED voltmeter can be disabled.
12V input power supply is recommended
Purchasing options:
PCB only: Only PCB board is included, other parts, such as connectors, capacitors and LED voltmeter are sourced by a buyer.
DIY Kit: Comes with everything that's needed to build the board. Doesn't include input PSU or connecting cables.
Assembled unit: includes all required components, no external cables.
Assembly instructions: The board is self explanatory but Github link includes schematics, board layout and photos to help if there are any problems. Here are several notes though:
Beginner soldering skills required. There are no high expectations, but being able to read schematics and understand polarity of components are quite important.
Cut 80 pin male header in 2 x 6 and 2 x 12 pieces to solder for J7 and J8.
Mount Voltmeter on stands and connect 3 wires parallel to the board.
Follow polarity orientation for LEDs. Square pad on PCB is for the negative pin.
Set jumpers appropriate to the polarity, always power off before moving jumpers.
