2 items in Schematics → Circuit Diagram
Year: 1970
Factory circuit diagram for the Ovation Breadwinner electric guitar active electronics. Features a two-stage transistor preamp (Q1, Q2) with pickup selector switch (S1 with bridge and neck pickup inputs), inductor-based tone shaping (L1), and multiple RC filtering stages. Powered by dual batteries (B1 at 18V, B2 at 9V). Output via J1 jack with S3 switch. Document marked subject to change without notice by Ovation Instruments.
Year: 1970
Ovation Instruments factory circuit diagram for the Breadwinner guitar model 1251-0-350F. Three-stage active transistor preamp featuring bridge and neck pickups routed through a pickup selector switch (S1), three common-emitter transistor gain stages (Q1, Q2, Q3) with RC coupling, front and rear tone controls (750K and 250K pots), a 1 henry inductor (L1) in the output filter network, and a dual battery power supply (9V and 18V). Includes red LED power indicator (F1) and phase/tone switching (S2). Note on schematic states all capacitance values in microfarads unless otherwise specified.
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Bill of Materials
Circuit Diagram
Diagram
Pre-Amp Schematic
Schematic
Service Guide
Technical Drawing
Troubleshooting Guide
Wiring Diagram
