Expanding the capabilities of the probe-indicator. Scheme, description

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Expanding the capabilities of the probe-indicator. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Ham Radio Technologies

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The article by A. Zvirbulis "Universal probe-indicator" ("Radio", 2001, No. 10, pp. 54, 55) described a universal device for checking the health of various radio elements and monitoring the supply voltages of various designs.

The functions of this device can be expanded by equipping it with an attachment for testing remote controls on IR rays. To do this, you need a VD1 photodiode and two sockets (see figure), to which the indicator probes are connected.

Expanding the capabilities of the indicator probe

If you point a working remote control at the photodiode and give any command, clicks will be heard in the indicator and the LED will flash. In principle, a photodiode can be built into the indicator probe and turned on, say, with a push-button switch as needed.

Author: V.Muratov, Angarsk, Irkutsk region.

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