Sinclair Radionics
1964 - 1975
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Project 80 Project 60 Inside Sinclair Neoteric Amplifier System 2000/3000 amps

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Sinclair Technical Information Sheets

Sinclair's service department was also responsibe for answering technical enquries. When you are selling to a home-constructor market, it soon happens that the same questions get asked many times. So we had a series of Technical Information Sheets to answer these standard questions.

I still have copies of some of these sheets as listed below which have been scanned - see thumbnail index below..

MA.1.41.1 System 3000 Component Layout
MA.1.42.1 System 3000 Copper Layout
MA.1.43.1 System 3000/2000 Mark II amplifier circuit differences. Issued June 1971.
MA.1.43.1 System 3000/2000 Mark II amplifier circuit differences. Issued September 1971
MA.1.43.2 System 3000/2000 Mark II amplifier Transistor equivalents Issued September 1971
MB.1.40.1 System 2000 Mk II Circuit Diagram
MF.1.31.1 System 3000 & 2000 Mark II Position of extra capacitors for removal of Radio Interference 1st April 1972
MG.1.40.1 Neoteric 60 circuit diagram
Neoteric 60 circuit diagramhas been redrawn
MG.1.41.1 Neoteric 60 Component layout 22 April 1971
Neoteric 60 layout is available here.
MG.1.49.1 Service Routine for Neoteric 60 August 1973
This has been transcribed.
MM.1.31.1 System 2000 amplifier - modification to early model.
MM.1.43.1 System 2000 amplifier - Transistor Equivalents.
MM.1.40.1A System 2000 amplifier - Mark 1A circuit
MM.1.40.1B System 2000 amplifier - Mark 1B circuit
MM.6.41.1A System 2000 amplifier - Mark 1A Component Layout August 1971
MM.6.42 System 2000 amplifier - Mark 1A Copper layout August 1971
MM.1.42.1B System 2000 amplifier - Mark 1B Copper layout
MM.1.41.1B System 2000 amplifier - Mark 1B Component layout August 1971
NF.1.33.1 Project 60, systems 2000 and 3000 tuners: Dial drive modification
NK.1.41.1 Micromatic Component Layout 1972
TU.9.30.1 Z50 - Failure mechanism and modification November 1971
TU.1.43.1 Z30 Transistor Equivalents
TU.1.48.1 Z50 Mk II Performance curves
TU.1.80.1 Z30 & Z50 Notes on additional capacitor and omission of capacitor January 1972
TW.6.30.1 PZ6: circuit modification
TN.4.49.2 Project 60 Tuner: Service, Test and Alignment November 1971
TN.1.49.3 Project 60 Tuner: Further hints and information January 1972