Homebrew Electronics Hematoma Bass Preamp Overdrive Pedal

The Homebrew Electronics Hematoma Bass Preamp Overdrive Pedal is a two channel bass pedal consisting of a 5db preamp and an overdrive. The preamp and overdrive can be used independently or can be combined.

Homebrew Electronics Hematoma Bass Preamp Overdrive Pedal

Input-Instrument in. Unplug when not in use to conserve battery life.
Out-Out to amp
9VDC Jack-for use with -(Negative) center, 9VDC, filtered, and regulated power supply.
Pre-Gain -Varies the level of the pre-amp up to 5db boost.
Gain-Varies the amount of overdrive.
Level -Varies the amount of output for the overdrive channel.
Tone -Varies the amount of bass or treble for the overdrive channel.
EQ Shift Switch-Changes the sweep of the tone control and provides a warmer smoother tone when engaged. (Switched to the right)
BO-Switches on and off the overdrive effect.
BP-Switches on and off the bass pre-amp effect.