Frequently Asked Questions (FAQ)

What parts are not used from the standard x0xb0x kit when installing a Full x0xi0 mod?
How do I order a x0xi0 or x0xi0 kit?
How long will it take me to build and install the full kit?
What tools do I need to complete a kit?
Can you supply me with pre-stuffed PCB's?
Can I buy a complete x0xb0x with x0xi0 kit installed?
What are the default settings for the stock TB-303 sound?


What parts are not needed for the standard x0xb0x kit when installing a Full x0xi0 mod?
The parts in the this table are the ones you do not need as they are not used.
See x0xb0x Parts for a list of standard parts that are needed for the x0xb0x.
Component Picture Description Qty Designation Manufacturer
10k1/4W 5% RESISTOR4R36,R47,R143,R145Generic
1uF50V ELECTROLYTIC3C14,C15,C17Generic
10nFPOLYESTER3C20,C21,C33XICON PM2A333K
TOGGLESPDT1SW1NKK B12AB-RO
ENCODER9mm ENCODER1S2CTS 290VAA5F201B2
HEATSINKTO-220 HEATSINK1IC20'AAVID 574502B00000G
50k6mm TRIMPOT1TM4VISHAY CT6EP503
5k6mm TRIMPOT1TM5VISHAY CT6EP502
CONTROL KNOBBLACK SOFT TOUCH8VR2',VR3',VR4',VR5',VR6',VR7',VR8',S2'EAGLE 450-4760
SWITCH KNOBBLACK PLASTIC2S3',S4'Davies 1510AH
STANDOFF15/32" x 1/4" x 4-403N/AGENERIC
STANDOFF3/8" x 1/4" x 4-404N/AGENERIC
WASHER4-40 LOCK WASHER7N/AGENERIC
WASHER4-40 WASHER4N/AGENERIC
SET OF MAIN & I/O PANELSSET OF MAIN & I/O PANELS1N/ACUSTOM
*Additional photos by Adafruit - Limor Fried

How do I order a x0xi0 or x0xi0 kit?
click on Contact/Buy to order Kits. For pre-built Rev B x0xi0 products contact via email for pricign and availability.

How long will it take me to build and install the full kit?
The Full kit takes a lot of patience. It will take about six or more hours to carefully stuff the two PCB's. It takes an additional four hours or more to assemble the PCB's into the x0xb0x and complete the wiring. Once completed, tested and working it takes about an hour or less to complete the calibration.

What tools do I need to complete a kit?
Required tools for completing the kit include:

Soldering iron
Desoldering tool
Diagonal cutters
Multimeter
Phillips head #2 Screwdriver
3/32" Allen head Driver

additionally an oscilloscope is highly recommended for testing and troubleshooting

Can you supply me with pre-stuffed PCB's?
Generally I don't have pre-stuffed PCB's available. Sometimes if I am not too busy I do make them available. It's best to send an email and ask.

Can I buy a complete x0xb0x with x0xi0 kit installed?
There are sometimes pre-built Rev B x0xi0's available. These are complete units build into and aluminum enclosure and include a one-year warranty. Contact via email for pricing & availability.

What are the default settings for the stock TB-303 sound?
The x0xi0 is a unique synthesizer on its own and goes much beyond a regular TB-303 soundset. To set it up for the traditional TB-303 sound set the controls as shown.