Schematics, Service manual, or circuit diagram
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44 Maesto models listed, I usually send them all !


Model
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Source
File Type/
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Ext
Preview/
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Maesto Fuzz-FileMaesto-Fuzz.EffectsEffectspdfMaesto Fuzz schematic circuit diagram
Maestro 271A1978FileMaestro_Norlin-271A-1978.FuzzEffectEffectspdfMaestro 271A schematic circuit diagram
Maestro 6V6 Tremelo Amp-FileMaestro-6V6 Tremelo Amp.AmpAmplifierpdfMaestro 6V6 Tremelo Amp schematic circuit diagram
Maestro Bass Brass Master-FileMaestro-BB1_Bass Brass Master.EffectsEffectspdfMaestro Bass Brass Master schematic circuit diagram
Maestro BB1-FileMaestro-BB1_Bass Brass Master.EffectsEffectspdfMaestro BB1 schematic circuit diagram
Maestro Boomer 2-FileMaestro-Boomer 2_Boomer Wah 2.EffectsEffectspdfMaestro Boomer 2 schematic circuit diagram
Maestro Boomerang Wah-FileMaestro-Boomerang Wah.EffectsEffectspdfMaestro Boomerang Wah schematic circuit diagram
Maestro boomerang wah wah-FileMaestro-eg1_boomerang wah wahFilepdfMaestro boomerang wah wah schematic circuit diagram
Maestro boomer-FileMaestro-eg2_boomer.2RadiopdfMaestro boomer schematic circuit diagram
Maestro Boomer Wah 2-FileMaestro-Boomer 2_Boomer Wah 2.EffectsEffectspdfMaestro Boomer Wah 2 schematic circuit diagram
Maestro Echoplex1966FileMaestro-Echoplex-1966.AmpAmplifierpdfMaestro Echoplex schematic circuit diagram
Maestro Echoplex EP2-FileMaestro-EP2_EP3_EP4_Echoplex EP2_Echoplex EP3_Echoplex
EP4.Amp
AmplifierpdfMaestro Echoplex EP2 schematic circuit diagram
Maestro Echoplex EP3-FileMaestro-EP2_EP3_EP4_Echoplex EP2_Echoplex EP3_Echoplex
EP4.Amp
AmplifierpdfMaestro Echoplex EP3 schematic circuit diagram
Maestro Echoplex EP4-FileMaestro-EP2_EP3_EP4_Echoplex EP2_Echoplex EP3_Echoplex
EP4.Amp
AmplifierpdfMaestro Echoplex EP4 schematic circuit diagram
Maestro Echoplex EP4-FileMaestro_Norlin-EP4_Echoplex EP4.EchoEffectEcho
Unit
pdfMaestro Echoplex EP4 schematic circuit diagram
Maestro eg1-FileMaestro-eg1_boomerang wah wahFilepdfMaestro eg1 schematic circuit diagram
Maestro eg2-FileMaestro-eg2_boomer.2RadiopdfMaestro eg2 schematic circuit diagram
Maestro EP2-FileMaestro-EP2_EP3_EP4_Echoplex EP2_Echoplex EP3_Echoplex
EP4.Amp
AmplifierpdfMaestro EP2 schematic circuit diagram
Maestro EP3-FileMaestro-EP2_EP3_EP4_Echoplex EP2_Echoplex EP3_Echoplex
EP4.Amp
AmplifierpdfMaestro EP3 schematic circuit diagram
Maestro EP4-FileMaestro-EP2_EP3_EP4_Echoplex EP2_Echoplex EP3_Echoplex
EP4.Amp
AmplifierpdfMaestro EP4 schematic circuit diagram
Maestro EP4-FileMaestro_Norlin-EP4_Echoplex EP4.EchoEffectEcho
Unit
pdfMaestro EP4 schematic circuit diagram
Maestro FRB 1-FileMaestro-FRB 1_Full Range Booster 1.EffectsEffectsgifMaestro FRB 1 schematic circuit diagram
Maestro Full Range Booster 1-FileMaestro-FRB 1_Full Range Booster 1.EffectsEffectsgifMaestro Full Range Booster 1 schematic circuit diagram
Maestro fuzz-FileMaestro-fuzzFilepdfMaestro fuzz schematic circuit diagram
Maestro Fuzz FZ1-FileMaestro-FZ1_FZ1A_Fuzz FZ1.AmpAmplifierpdfMaestro Fuzz FZ1 schematic circuit diagram
Maestro FZ1A-FileMaestro-FZ1_FZ1A_Fuzz FZ1.AmpAmplifierpdfMaestro FZ1A schematic circuit diagram
Maestro FZ1-FileMaestro-FZ1_FZ1A_Fuzz FZ1.AmpAmplifierpdfMaestro FZ1 schematic circuit diagram
Maestro G2-FileMaestro-G2_Rhythm n Sound.Amp.poorAmplifierpdfMaestro G2 schematic circuit diagram
Maestro M1 RVT-FileMaestro-M1 RVT.AmpAmplifierpdfMaestro M1 RVT schematic circuit diagram
Maestro M201-FileMaestro-M201.AmpAmplifierpdfMaestro M201 schematic circuit diagram
Maestro M 216RVT-FileMaestro-M 216RVT.AmpAmplifierpdfMaestro M 216RVT schematic circuit diagram
Maestro MA 40RVT-FileMaestro-MA 40RVT.AmpAmplifierpdfMaestro MA 40RVT schematic circuit diagram
Maestro MFZ11976FileMaestro_Norlin-MFZ1-1976.FuzzEffectEffectspdfMaestro MFZ1 schematic circuit diagram
Maestro Mini Phase Shifter 2-FileMaestro-MPS 2_Mini Phase Shifter 2.EffectsEffectsgifMaestro Mini Phase Shifter 2 schematic circuit diagram
Maestro MP11977FileMaestro_Norlin-MP1-1977.PhasorRadiopdfMaestro MP1 schematic circuit diagram
Maestro MPF320A1978FileMaestro_Norlin-MPF320A-1978.ParammetricFilterRadiopdfMaestro MPF320A schematic circuit diagram
Maestro MPP274A-FileMaestro_Norlin-MPP274A_MSP274A.StagePhasorRadiopdfMaestro MPP274A schematic circuit diagram
Maestro MPS 2-FileMaestro-MPS 2_Mini Phase Shifter 2.EffectsEffectsgifMaestro MPS 2 schematic circuit diagram
Maestro MSP274A-FileMaestro_Norlin-MPP274A_MSP274A.StagePhasorRadiopdfMaestro MSP274A schematic circuit diagram
Maestro Rhythm n Sound-FileMaestro-G2_Rhythm n Sound.Amp.poorAmplifierpdfMaestro Rhythm n Sound schematic circuit diagram
Maestro Ring Modulator-FileMaestro-Ring Modulator.EffectsEffectspdfMaestro Ring Modulator schematic circuit diagram
Maestro TH11972FileMaestro-Theremin_TH1-1972.ThereminRadiopdfMaestro TH1 schematic circuit diagram
Maestro Theremin1972FileMaestro-Theremin_TH1-1972.ThereminRadiopdfMaestro Theremin schematic circuit diagram
Maestro Viscount1963SM641RadioServicerMaestro Viscount schematic circuit diagram

These radio, TV, record player, amplifier, amp and tape or cassette recorder schematics, circuit diagrams and service manuals are mostly high quality, very readable scans and will usually be Emailed within an hour or two, if I need to scan an item, or it's the middle of the night, here in the UK it is 00:52 it may take a little longer! If more than one schematic is listed for a model I will generally send them all, unless too big to attach!
Specialising in British schematics Roberts, Hacker, Bush, Pye etc. also American and German manuals feature strongly, search for what you need. Multi page manuals are Emailed as pdfs. Please Email or phone 0788 4425213 Thanks for looking, Mike.
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90V/1.4V Battery Eliminator

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Fill in the "Make" and "Model" boxes, if you are unsure of the model, leave it blank and I will list ALL models for that manufacturer, similarly if you only have the model number leave "Make" blank and I will list similar model names from ALL manufacturers.
More explanation here. Some sources searched :-
Book Set KEY Years
J.F. Rider's Perpetual Rider 1920-54
Trader Service sheets Trader 1933-81
Beitman's Radio Diags Beitman 1926-69
Beitman's TV Diagrams Beitman 1947-70
Gernsback Radio Diags. Gernsback 1922-34
Empfanger Schaltungen ES 1928-57
RCA Service Notes RCASN 1923-52
Broadcaster Supplements Broadcaster 1934-42
Radio and TV 36 vol set RTV 1945-86
Radio and TV 5 vol set RTV5 1945-54
Crosley Service Suppls. Crosley 1929-42
My Pre-scanned Files File =>2022
The search logic is slightly "fuzzy" in that it's case insensitive and ignores punctuation so, model TR-510 is the same as tr510, and G.E.C is the same as "gec".

(297299 schematics* by 2171 different manufacturers indexed!)
Updated 23rd. Jan 2022

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