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Diagram of

Ovation Magnum II Slide Pot Bass Electronics BOM

Active bass preamp (op-amp based, 8x Motorola MC3476P1) Ovation Magnum II (Magnum 2) - Slide Pot Bass 9V DC (2x 9-volt batteries) 1970s US 32 components

Bill of Materials for Ovation Magnum II (Magnum 2) Slide Pot Bass active electronics circuit board assembly (drawing 1262-0-350B, ECN 1-0322, dated 2/10/78). Features 8 Motorola MC3476P1 op-amps, 6 slide pots for tone/EQ control, dual 100K volume pot, Switchcraft selector switch, and 9V battery power. Full active bass preamp with precision metal film resistors and mylar/ceramic capacitors.

Components

R1 56.2K metal film 1/2W 1%
R2 200K metal film 1/2W 1%
R3 36.5K metal film 1/2W 1%
R4,8,12,16,19,23,26,27 10K metal film 1/2W 1% (qty 8)
R5 3.92K metal film 1/2W 1%
R9,17 2.21K metal film 1/2W 1% (qty 2)
R10,24 1.10K metal film 1/2W 1% (qty 2)
R11 475K metal film 1/2W 1%
R13 15K metal film 1/2W 1%
R18 432K metal film 1/2W 1%
R20 18.2K metal film 1/2W 1%
R25 3.32K metal film 1/2W 1%
R29 thru 36 4.7MEG carbon 1/2W 5% (qty 8)
R28 100K+100K dual pot linear taper (volume)
R6,7,14,15,21,22 50K slide pot linear taper (qty 6)
S1 selector switch Switchcraft #12035L gold contacts
C1 22pF ceramic disc 1000V 10%
C2 0.47MFD mylar 100V 10%
C3 0.0082MFD mylar 100V 10%
C4 0.05MFD mylar 100V 10%
C5 0.0033MFD mylar 100V 10%
C6 0.039MFD mylar 100V 10%
C7 0.1MFD mylar 100V 10%
C8 820pF ceramic disc 1000V 10%
A1 thru A8 Motorola MC3476P1 op-amp (qty 8)
IC socket 16-pin DIP Cinch Jones 16E DIP (qty 4)
J1 output jack Calectro #F2-847
Wire black #22GA Belden #8503-10
Battery connector Philmore 9V #BC9 (qty 2)
Battery 9 volt (qty 2)
PCB circuit board (printed) part 400015-B
Decal IC instructions part 990028-A

Related Items

Catalogs (2)

Ovation Magnum II Bass Guitar French Review Catalogs

Ovation Magnum II Bass Guitar French Review

1980

2 pages
Ovation Magnum II Bass Guitar French Review
1980

Ovation Magnum II Bass Guitar French Review

Year: 1980

A detailed French-language review of the Ovation Magnum II electric bass guitar, covering its construction features including a carbon graphite-reinforced mahogany neck, ebony fingerboard, aluminum bridge, and sophisticated active electronics with a 3-band equalizer. The review concludes that despite being somewhat unattractive and expensive at 6,060 French Francs, the Magnum II represents a significant step forward in bass guitar technology, distributed in France by CAMAC.

Ovation Magnum Bass Owner's Manual Catalogs

Ovation Magnum Bass Owner's Manual

1978

20 pages
Ovation Magnum Bass Owner's Manual
1978

Ovation Magnum Bass Owner's Manual

Year: 1978

This is the original owner's manual for Ovation Magnum bass guitars, covering both the Magnum I (with stereo output) and Magnum II (with active electronics and 3-band graphic equalizer). The manual provides detailed information on pickups, electronics, tailpiece adjustments, neck maintenance, restringing procedures, and tone settings for these professional bass instruments manufactured by Ovation Instruments Inc. in New Hartford, Connecticut.

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