AVO Electronic Test Meter Valve Volt Meter ETM

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Manual Circuit and
Operation Instructions
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AVO Electronic Test Meter Valve Volt Meter

The high input resistance impedance of the instrument renders it particularly suitable for use upon electronic circuits which are usually capable of supplying very little energy, indeed certainly not enough to drive directly a general purpose moving coil instrument without causing a serious volts drop in the power source. When working with R.F. it is usually particularly important that the circuit under test should not be loaded by the measuring instrument, or losses introduced into the circuit by virtue of capacity and leakage in the instrument. By the use of a novel type of probe this test meter overcomes these and other problems hitherto associated with R.F. testing.

AVO Electronic Testmeter.jpg (44672 bytes)

The Manual Contains the Following :-

Working Instructions
Power supply to Instrument
Power consumption
Instructions to be followed upon receipt of Test Meter
General Instructions
Reverse Meter Switch and safety precautions to be taken when making measurements at high voltages
Measurement of DC voltages
Measurement of AC voltages
Use of the probe
Special of the probe
Easement of capacity
Measurement of resistance on the ohms ranges
Measurement of resistance on the megohms range
Measurement of audio watts and db
Instructions for replacement of lamps, valves, etc
Replacement of diode in probe
Replacement of bridge valve and lamps
Replacement of fuse
Instructions for setting the coarse zero and AC zero controls
Adjustment of instrument for operation upon various power supplies
Survive notes and adjustments
Table of ranges
Internal view
Component list
Circuit Diagrams

Manual Circuit and
Operation Instructions
available Details Below
As a Download

Click Here

AVO Electronic Test Meter Valve Volt Meter
Manuals are Available Worldwide as a Download.
Manual containing  37 pages including the Circuit with Component values.

Manual 37 A4 pages worldwide

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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 a Download

Thank you for your interest. Allen and Alanna G0RIT
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Revised: February 09, 2021