Ovation FET preamp Acoustic-Electric Guitar Advanced Troubleshooting Guide
active acoustic-electric preamp (FET-based)
Ovation Acoustic-Electric Guitar (FET Preamp)
9V DC (battery)
1980s
US
13 components
Technical troubleshooting guide for the Ovation acoustic-electric guitar FET preamp circuit using oscilloscope, audio meter, or volt meter. Details a 7-step diagnostic procedure testing the preamp at various signal injection points (500mV/100Hz and 50mV/5kHz). References specific components including the Motorola 2N5459 JFET transistor, capacitors (C1, C3, C4, C5), inductors (L1, L2), and resistor R1. Expected DC voltage is 9.0V; expected output approximately 500mV.
Components
Motorola 2N5459 JFET (Q1)
capacitor C1
capacitor C3
capacitor C5
capacitor C4
inductor L1
inductor L2
resistor R1
volume control potentiometer
output jack
pickup
9V battery
preamp circuit board