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Diagram of

1251-0-350D Circuit Diagram - Ovation Breadwinner

Active two-stage transistor preamplifier with tone shaping (cascaded common-emitter amplifier) Ovation Breadwinner 1251-0-350D 18V (dual battery: 18V + 9V supply rails) 1970s US 36 components

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.

Components

R1
R2
R3 (150K)
R4 (33K)
R5 (100K)
R6 (221K)
R7 (182K)
R8 (221K)
R9 (2.74K)
R10 front
R10 rear
R11 (475K)
R12 (18.2K)
R13 (221K)
R14 (6.81K)
R15
C1 (.0022mf)
C2 (10mf/25v)
C3 (100pf)
C4 (.0068mf)
C5 (.027mf)
C6 (.0056mf)
C7 (100pf)
C8 (1mf/50v)
C9 (10mf/25v)
Q1 (transistor)
Q2 (transistor)
L1 (inductor)
S1 (pickup selector)
S2 (tone switch)
S3 (output switch)
Bridge Pickup
Neck Pickup
B1 (18V battery)
B2 (9V battery)
J1 (output jack)

Guitar Models

1251 · Breadwinner & Deacon 1251 1251-5 · Breadwinner & Deacon 1251-5 1251-6 · Breadwinner 1251-6 White 1251-7 · Breadwinner 1251-7 Tan

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