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Schematics, Service Manuals and Owners Manuals


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( also see Gibson )
( also see Market Electronics )
Maestro 30 (GA-78RV) Stereo Reverb Amplifier Schematic
Contents: (Schematic) ($20)
Maestro BB-1 Bass Brassmaster Pedal Schematic
Contents: (Schematic) ($15)
Maestro BG-1 Boomerang Pedal Schematic
Contents: (Schematic) ($15)
Maestro BG-2 Boomerang Pedal Schematic
Contents: (Schematic) ($15)
Maestro EM-1 Groupmaster Echoplex Echo Unit Service Manual
Contents: Schematics, Product Picture / Illustration, Calibration / Alignment Instructions, Assembly / Disassembly Guide, Interconnection Diagram, Block Diagram / Signal Flow, Front / Rear Panel Illustrations, Semiconductor Generic Reference Numbers.
Note: Includes two different schematic versions, Tape cartridge installation. (Dated 1971-73) (9pages/$20)
Maestro EP-1 Model #5000 Echoplex by Market Electronics Echo Unit (Old Grey Case Tube Echo) Service Manual
Contents: Schematics, Product Picture / Illustration, Calibration / Alignment Instructions, Assembly / Disassembly Guide, PC Board Layout, Parts List.
Note: This is the very first version. Includes tape cartridge installation, Head alignment instructions ($20)
Maestro EP-2 Echoplex by Market Electronics Echo Unit (Old Grey Case Tube Echo) Service Manual
Contents: Schematics, Product Picture / Illustration, Calibration / Alignment Instructions, Assembly / Disassembly Guide, Front / Rear Panel Illustrations, PC Board Layout.
Note: Includes all four versions from Serial #1549-9067, Tape cartridge installation, Head alignment instructions (11pages/$20)
Maestro EP-3 Echoplex Echo Unit Service Manual
Contents: Schematics, Product Picture / Illustration, Introduction / Features, Controls, Functions & Theory of Operation, Test Procedures, Calibration / Alignment Instructions, Assembly / Disassembly Guide, Interconnection Diagram, Parts List, Semiconductor Generic Reference Numbers.
Note: Includes three different schematic versions, tape cartridge installation, head alignment instructions, and compressor board schematic (Dated 1971-79) (18pages/$20)
Maestro EP-4 Echoplex Echo Unit Service Manual
Contents: Schematics, Product Picture / Illustration, Introduction / Features, Controls, Functions & Theory of Operation, Test Procedures, Calibration / Alignment Instructions, Assembly / Disassembly Guide, Interconnection Diagram, Parts List, Semiconductor Generic Reference Numbers.
Note: Includes tape cartridge installation, head alignment instructions and compressor board schematic. (Dated 1971-79) (15pages/$20)
Maestro ES-1 Sireko Echo Unit Service Manual
Contents: Schematics, Product Picture / Illustration, Introduction / Features, Controls, Functions & Theory of Operation, Calibration / Alignment Instructions, Assembly / Disassembly Guide, Interconnection Diagram, Parts List, Semiconductor Generic Reference Numbers (Dated 1971-79) (14pages/$20)
Maestro FP-1 Fuzz Phazzer Pedal Schematic
Contents: (Schematic) ($15)
Maestro FP-2 Fuzz Phazzer Pedal Schematic
Contents: Schematics ($15)
Maestro FP-3 Fuzz Phazzer Pedal Schematic
Contents: (Schematic) ($15)
Maestro FRB-1 Full Range Booster Schematic
Contents: (Schematic) ($15)
Maestro FSH-1A Filter Sample/Hold Pedal Schematic
Contents: (Schematic) ($15)
Maestro FZ-1 Fuzz-Tone Pedal Schematic
Contents: (Schematic).
Note: Three transistor brown painted version with attack, volume controls on rear using 2)AA batteries. (Dated 1960's) ($15)
Maestro FZ-1A Fuzz-Tone Pedal Schematic
Contents: Schematics, Product Picture / Illustration, Semiconductor Generic Reference Numbers.
Note: Three transistor brown painted version with attack, volume controls on rear. Serials are above #5101 and use a single AA battery. (Dated 1960's) ($15)
Maestro FZ-1B (Version 1) Fuzz-Tone Pedal Schematic
Contents: (Schematic).
Note: Two transistor version with balance, volume controls on rear using single 9V battery. ($15)
Maestro FZ-1B (Version 2) Fuzz-Tone Pedal Schematic
Contents: (Schematic).
Note: Four transistor version with balance, volume controls using single 9V battery. ($15)
Maestro FZ-1S Super Fuzz Pedal Schematic
Contents: (Schematic).
Note: Six transistor version with balance, volume, sustain, controls and fuzz 1/2 switch. ($15)
Maestro G-1 Rhythm 'N Sound For Guitar Preamp Schematic
Contents: Schematics ($20)
Maestro G-2 Rhythm 'N Sound For Guitar Preamp Service Manual
Contents: Schematics, Product Picture / Illustration, Specifications, Technical Circuit Descriptions, Calibration / Alignment Instructions, Assembly / Disassembly Guide, Front / Rear Panel Illustrations, PC Board Layout, Parts List (15pages/$25)
Maestro GA-15RV Reverb Amplifier Schematic
Contents: Schematics, Voltage Check Points, Tube Layout Chart, An owners guide for the operation of the equipment..
Note: Tube List: 6EU7,6EU7, 6EU7, 12AU7, 6V6, 6V6, 5Y3 (Dated 1961) ($15)
Maestro GA-1RT-1 Reverb Tremolo Amplifier Schematic
Contents: Schematics, Tube Layout Chart ($15)
Maestro GA-1RVT Reverb Tremolo Amplifier Schematic
Contents: (Schematic) ($15)
Maestro GA-2RT Deluxe Reverb Tremolo Amplifier Schematic
Contents: (Schematic) ($15)
Maestro GA-45RV Reverb Amplifier Schematic
Contents: (Schematic) ($15)
Maestro GA-45RVT Reverb Tremolo Amplifier Schematic
Contents: (Schematic) ($15)
Maestro GA-46 Accordion Amplifier Schematic
Contents: (Schematic) ($15)
Maestro GA78RV Stereo 30 Schematic
Contents: (Schematic).
Note: 9 tubes, reverb, no vibrato ($15)
Maestro M-201 Amplifier Schematic
Contents: (Schematic) ($15)
Maestro M-216RVT Amplifier Schematic
Contents: (Schematic) ($15)
Maestro ME-1 Envelope Modifier Pedal Schematic
Contents: (Schematic) ($15)
Maestro MFZ-1 Fuzz Pedal Schematic
Contents: (Schematic) ($15)
Maestro MFZT-272A Fuzztain Pedal Schematic
Contents: (Schematic) ($15)
Maestro MM-1 Maestro Multiplier Pedal Schematic
Contents: Schematics, Product Picture / Illustration, Semiconductor Generic Reference Numbers (Dated 1981) ($15)
Maestro MP-1 Phaser Pedal Service Manual
Contents: Product Picture / Illustration, Introduction / Features, Technical Circuit Descriptions, Calibration / Alignment Instructions, Assembly / Disassembly Guide, Block Diagram / Signal Flow, Parts List, Semiconductor Generic Reference Numbers (Dated 1977) (10pages/$15)
Maestro MPF-320A Parametric Filter Pedal Service Manual
Contents: Schematics, Introduction / Features, Specifications, Technical Circuit Descriptions, Calibration / Alignment Instructions, Assembly / Disassembly Guide, PC Board Layout, Parts List (Dated 1978) (11pages/$15)
Maestro MPP-274A Stage Phaser Pedal Schematic
Contents: Schematics, Product Picture / Illustration, Introduction / Features, Technical Circuit Descriptions, Assembly / Disassembly Guide, PC Board Layout, Parts List, Semiconductor Generic Reference Numbers (Dated 1978) (13pages/$15)
Maestro MPS-2 Mini-Phase Shifter Pedal Schematic
Contents: Schematics, PC Board Layout, Semiconductor Generic Reference Numbers (Dated 1974) ($15)
Maestro MRK-1 Rhythm King Automatic Rhythm Drum Machine Service Manual
Contents: Schematics, Product Picture / Illustration, Specifications, Technical Circuit Descriptions, Troubleshooting Guide / Fault Diagnosis, Voltage Check Points, Block Diagram / Signal Flow, PC Board Layout, Parts List.
Note: Semi's are shown with the manufacturer's part numbers (not generic). (Dated 1970's) (30pages/$35)
Maestro MRK-2 Rhythm King Automatic Rhythm Drum Machine Schematic
Contents: Schematics (Dated 1970's) ($20)
Maestro MRK-IV Rhythm King Automatic Rhythm Drum Machine Schematic
Contents: (Schematic) ($20)
Maestro MRQ-1 Rhythm Queen Automatic Rhythm Drum Machine Schematic
Contents: Schematics, PC Board Layout, Parts List (Dated 1970's) (11pages/$20)
Maestro MSP-274A Stage Phaser Pedal Schematic
Contents: Schematics, Product Picture / Illustration, Introduction / Features, Technical Circuit Descriptions, Assembly / Disassembly Guide, PC Board Layout, Parts List, Semiconductor Generic Reference Numbers (Dated 1978) (13pages/$15)
Maestro M-TR202 Transistor Amplifier Schematic
Contents: (Schematic) ($15)
Maestro OB-1 Octave Box Pedal Schematic
Contents: (Schematic) ($15)
Maestro OB-2 Octave Box Pedal Schematic
Contents: (Schematic) ($15)
Maestro Plus-50 Amplifier Schematic
Contents: (Schematic) ($15)
Maestro PS-1 Phase Shifter Pedal Service Manual
Contents: Schematics, Product Picture / Illustration, Calibration / Alignment Instructions, Parts List, Semiconductor Generic Reference Numbers, Service Bulletins / Engineering Changes / Modifications ($20)
Maestro PS-1A Phase Shifter Pedal Schematic
Contents: Schematics, Product Picture / Illustration, Calibration / Alignment Instructions, Parts List, Semiconductor Generic Reference Numbers, Service Bulletins / Engineering Changes / Modifications ($20)
Maestro PS-1B Phase Shifter (w/Variable Speed Pot) Pedal Schematic
Contents: Schematics, Product Picture / Illustration, Calibration / Alignment Instructions, Parts List, Semiconductor Generic Reference Numbers, Service Bulletins / Engineering Changes / Modifications ($20)
Maestro RJ-1 Rhythm Jester Drum Synthesizer Schematic
Contents: (Schematic) ($25)
Maestro RM-1A Ring Modulator Pedal Schematic
Contents: (Schematic) ($15)
Maestro RM-1B Ring Modulator Pedal Schematic
Contents: Schematics, Calibration / Alignment Instructions ($15)
Maestro RO-1 Rover Rotary Speaker Schematic
Contents: Schematics, Product Picture / Illustration, Voltage Check Points, Front / Rear Panel Illustrations, Footswitch Wiring, Semiconductor Generic Reference Numbers ($20)
Maestro SE-1 Sireko Echo Unit Service Manual
Contents: Schematics, Product Picture / Illustration, Introduction / Features, Controls, Functions & Theory of Operation, Calibration / Alignment Instructions, Assembly / Disassembly Guide, Interconnection Diagram, Parts List, Semiconductor Generic Reference Numbers (Dated 1971-79) (14pages/$20)
Maestro SI-G1 Signal Isolator Schematic
Contents: (Schematic) ($15)
Maestro SI-G2 Dual Signal Isolator Schematic
Contents: Schematics, Product Picture / Illustration (Dated 1980's) ($15)
Maestro SS-1 Sustainer Pedal Schematic
Contents: (Schematic) ($15)
Maestro SS-2 Sustainer Pedal Schematic
Contents: (Schematic) ($15)
Maestro SS-3 Sustainer Pedal Schematic
Contents: (Schematic) ($15)
Maestro Stereo-Amplifier Amplifier Schematic
Contents: (Schematic) ($15)
Maestro TH-1 Theremin Service Manual
Contents: Schematics, Product Picture / Illustration, Parts List, Semiconductor Generic Reference Numbers (Dated 1975) ($15)
Maestro USS-1A Universal Synthesizer Synthesizer Schematic
Contents: (Schematic) ($25)
Maestro Viscount Amplifier Schematic
Contents: (Schematic) ($15)
Maestro VP-1 Volume Pedal Schematic
Contents: (Schematic) ($15)
Maestro W1 Sound System For Woodwinds Preamp Schematic
Contents: Schematics (Dated 1970's) ($20)
Maestro W2 Sound System For Woodwinds Preamp Service Manual
Contents: Schematics, Specifications, Technical Circuit Descriptions, Assembly / Disassembly Guide, Front / Rear Panel Illustrations, PC Board Layout, Parts List (Dated 1970's) (17pages/$25)
Maestro W3 Sound System For Woodwinds Preamp Schematic
Contents: Schematics (Dated 1970's) ($20)
Maestro WW-2 Wah Wah Pedal Schematic
Contents: (Schematic) ($15)

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Maestro Schematics, Service Manuals and Owners Manuals Archive