Thandar Oscilloscope SC110A


Circuit Diagram, Service Manual, Service Information,  Schematic Diagrams and Manuals

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Thandar SC110A Oscilloscope

TECHNICAL SPECIFICATION

Display

Screen dimensions:- 32mmx26mm
Graticule divisions:- 5 horizontalx4 vertical (6mm)
Phosphor: - Blue-white, medium persistence
External adjustments:- Intensity, Focus, Trace Rotate

Vertical Deflection (Y input)
Bandwidth:- D.C. to 10MHz .t. 3dB at 1 div.
Coupling:- Switchable D.C., A.C. or ground
A.C. coupling 3dB at 2Hz
Sensitivity:- l0mV/div to 50 V/div in 12 ranges Calibrational accuracy 3%
Input impedance:- 1MQ in parallel with 47pF.
Maximum input:- 350V (D.C. + peak A.C.) provided
D.C. component does not exceed 250V.

Thandar SC110A Scope.jpg (18987 bytes)

Horizontal Deflection (X Input
Switch selectable
Bandwidth:- D.C. to 2MHz 6dB
Coupling:- D.C.
Sensitivity:- Approximately 0.5 volts/div.
Input impedance:- 1 M ohm in parallel with 10pF
Maximum input:- 2.5 volts, protected to 250 r.m.s. 50/60Hz

Timebase
Switch selectable
Sweep times:- 0.lu secs/div to 0.5 secs/div in 21 ranges
Calibrational accuracy 3%
for 0.2p secs/div to 0.5 secs/div ranges; 10% for 0.lu secs/div.

Triggering Circuit
Source:- Internal or external switchable
Coupling:- A.C., D.C., TV Frame, or TV Line filtering.
Level:- Continuously variable over waveform
Slope:- + or - selectable on level control.
Sensitivity:- Less than 1 div. for internal trigger
Less than 1 volt for external trigger
Modes:- a) Bright line
Timebase free runs until synchronised by trigger circuit.

Thandar SC110A Scope 2.jpg (16966 bytes)

b) Trigger
Timebase reset with display blanked until sweep initiated by trigger circuit.

c) Economy
Instrument switches to a power saving mode with display blanked until timebase is started by trigger circuit.

d) External
As for Bright Line but with
external trigger input.

Calibrator
Square wave output of amplitude 1 volt pk-pk 5%. Frequency 1kHz - 30%

Power Requirements
4V to 10V D.C. via disposable cells, rechargeable cells, or AC. adaptor.

Typical Power Consumption
Bright Line - 900mW
10MHz 1300mW
Economy 350mW

Physical Details
Dimensions:- 255 x 150 x 50 mm
Weight:- 900 gms
Environmental operating range: 5 to 40C, 20% to 80% RH Environmental storage range: - 40 to 70C.

Manual and Circuit
available Details Below
On Paper CD or Download

Click Here

The Manual contains the following :-

Contents

Technical Specification

Circuit Descriptions

Test and Calibration

Parts List

Component Layouts

Circuit Diagram


Thandar SC110A Oscilloscope
Manuals are Available Worldwide as a Download on CD or Paper Copy.

Manual including circuits and Layouts 31 pages
Manual
35 A4 pages worldwide

Printed Paper Copy or on CD are Plus Postage.

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We do all we can to provide the very best that is available for you.
But in the unlikely event that any data should not be as you expected.
A refund is always available. Kind Regards Allen and Alanna.


Manuals are Available Worldwide as Paper Copy on CD or as a Download

Thank you for your interest. Allen and Alanna G0RIT
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Revised: January 20, 2016