Simple OnBoard JFet Preamp for Piezos - Cigar Box Nation
Active Circuit Onboard Effects, QTB ~ Quadra Tone Booster Driver
Onboard Preamp- Clapton Mid Boost, Brian May Treble Boost, C
Amazon.com: Kmise Under Saddle Piezo Pickup Onboard Preamp System for Acoustic Guitar : Musical Instruments
How to Install a Guitar Gain Boost Circuit (Artec) - YouTube
Onboard Preamp- Clapton Mid Boost, Brian May Treble Boost, C
Artec Onboard Mod - Active VTC Overdrive
Active Onboard Guitar Preamp - EQ-Boost (Based on VSC-3) - AnalogWorkshop | eBay
East UK Uni-Pre Onboard Preamp | Bass Gear Magazine
Micro Booster MK4 Onboard Guitar Preamp with Push-Push Switch-Pot – BECOSFX
Artec QTB 4 Step Clean Boost On Board Circuit for Electric Guitar & Bass|circuit board repair|circuit board jewelryboard gateway - AliExpress
Active Onboard Guitar Preamp - EQ-Boost external potentiometer - AnalogWorkshop | eBay
Blaster Boost Mod Kit — Mythos Pedals
BECOS FX Micro Booster MK4 Onboard Guitar Preamp with Push-Push Switch-Pot, 250K (for Single Coil) | guitar pedals for any genre
Dual Boost" two switch Onboard Mid Boost/Frequency Expander
Tiny Active Onboard JFET Guitar Preamp 6dB Linear Gain Booster | eBay
Aguilar OBP-1TK 2-band Boost Onboard Bass Preamp | Sweetwater
Aguilar Onboard Preamp 2-band Boost/Cut – Chicago Music Exchange
Seymour Duncan Active Bass™ Preamp 3 Band for Active Pickup | Seymour Duncan
Demeter MID Boost/Fat Control Onboard Guitar Device
Active Onboard Guitar Preamp - Mid-Boost (Based on VSC-3) | eBay
Psycho Knob Board - Internal Distortion/Boost/Overdrive for Guitar or Amp - now with pre-wired leads! - C. B. Gitty Crafter Supply
K-Boost - RSD Sound
