AVO HF RF Signal Generator 135 HF135

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

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Instructions with Circuit
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AVO HF 135 HF135 RF Signal Generator

General information
The Signal Generator is a compact,- reliable, yet inexpensive mains operated signal generator, designed primarily for the radio and television service engineer.

The instrument covers the frequency range 100kHz to 240MHz in eight bands with a maximum output of l00mV into a 75 ohm load. Attenuation is provided by four 20 dB steps and a continuously variable control. An R.F. level indicator monitors the r.f. voltage applied to the attenuator system. An un modulated R.F. output is available or alternatively, an internal audio oscillator provides 30% sine wave amplitude modulation at 1000Hz. The output of the audio oscillator is available at the A.F. Output socket as an audio signal source of approximately l V r.m.s. Facilities are provided for external modulation between 50Hz and 5kHz to be applied at the Ext. Mod./A.F. Output socket.

AVO HF 135 Sig Gen.jpg (19948 bytes)

The Information Consists of  the Following :-

Instrument Repairs and Spares
General Information
Preliminary Checks
Components List
Circuit Diagram

Instructions with Circuit
available Details Below
As a Download

Click Here

AVO HF 135 HF135 RF Signal Generator
Manuals are Available Worldwide as a Download.

Manual containing 16 pages including all Circuits.
Manual 16 A4 pages worldwide

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We do all we can to provide the very best that is available for you.
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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