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Diagram of

Ovation EQ V1 REV-B2 - Viper EA-68/EA-63 Preamp Schematic

active 3-band equalizer Ovation Viper EA-68 / EA-63 9V (battery) 1990s US 8 components

Confidential factory schematic for the Ovation Viper EA-68 and EA-63 active 3-band (Bass/Mid/Treble) equalizer preamp circuit. Uses TL062 and TL064 op-amps with gyrator-based tone filters. Drawing dated 3-5-99, revision B2, from Kaman Music (Santa Rosa). Sheet 1 of 1.

Components

TL062 dual op-amp (U1)
TL064 quad op-amp (U2)
resistors R1-R22
capacitors C1-C15
Bass potentiometer
Mid potentiometer
Treble potentiometer
input/output connectors J1 J2
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