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Molecular Biology

TV-service-triggered-oscilloscope

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TV service triggered oscilloscope

Details

Inventors: Bowden, Ralph H.;
Assignee:
Primary Examiner: Rolinec; R. V.
Assistant Examiner: Karlsen; Ernest F.
Attorney, Agent or Firm: Patnaude; Edmond T.

There is described a triggered sweep oscilloscope for television service use employing sync pulse triggered internal sweep circuits selected by push buttons on the front panel of the instrument.

DETAILED DESCRIPTION Briefly, there is provided in accordance with the present invention an oscilloscope having sweep circuits triggered by the horizontal and vertical sync pulses of a standard television signal, which circuits are respectively selected by push button operated switches on the front panel of the instrument.
In addition an adjustable, variable speed sweep and a 60 Hertz sweep also selected by a pair of push button operated switches are provided.
The former sweep is adjustable by means of a rotary control which in one extreme position sets the sweep at the proper horizontal rate to view the color burst frequency.
A fifth push button operated switch is used to control the oscilloscope from an externally applied sweep signal.
These five push buttons are mechanically interlocked to enable facile, rapid and accurate switching from one sweep speed to another.
Other controls for focus, horizontal and vertical positioning, gain and brightness are also provided on the front of the instrument.

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