Jc-120 Schematic

The JC-120 uses a quasi-complementary or fully complementary symmetry output stage, typically utilizing power transistors on large aluminum heat sinks.

If you are new to reading amplifier schematics, follow this specific protocol for the JC-120: jc-120 schematic

The signal enters through a standard 1/4" jack. The first active component is a 2SK117 or 2SK184 JFET (Junction Field Effect Transistor). Roland chose these for their high input impedance, which preserves guitar pickups' high-end frequencies. The JC-120 uses a quasi-complementary or fully complementary