TinkercasterAguilar OBP-3 3-band bass preamp
3-band with mid select, wired to its pots
Aguilar OBP-3: bass, treble and mid pots and the mid-frequency switch come wired. Solder blue (input), green (output to jack tip), black (ground) and red (battery +); the battery's negative goes to the stereo jack's ring.
Connections at a glance
Use the terminal labels below when planning your circuit. Check the manufacturer's documentation for your exact component revision.
| Terminal | Label | Role | Lead colour |
|---|---|---|---|
| BLU | Input (blue) | Input | blue |
| GRN | Output to jack tip (green) | Output | green |
| BLK | Ground (black) | Ground · Ground | black |
| RED | Battery + (red) | Power pos | red |