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  2. Battery eliminator circuit - Wikipedia

    en.wikipedia.org/wiki/Battery_eliminator_circuit

    Battery eliminator circuit. In battery-powered equipment, a battery eliminator circuit ( BEC) is an electronic voltage regulator used to power a subsystem at a different voltage without the need for a supplemental battery. BECs are commonly used in radio-controlled models, which need separate voltages to power the motor and the R/C equipment.

  3. Radio-controlled car - Wikipedia

    en.wikipedia.org/wiki/Radio-controlled_car

    Three different 27MHz channels were available to allow running 3 cars at a time. The price announced in 1966 for the complete, ready to run car was $69.95, a clear indication of the high price of radio control in what was originally a $4.95 battery electric car without radio control. ElGi Ferrari 250LM 1:12 Scale Radio Controlled Car

  4. Radio-controlled model - Wikipedia

    en.wikipedia.org/wiki/Radio-controlled_model

    1:10 scale radio-controlled car. ( Saab Sonett II) A radio-controlled model (or RC model) is a model that is steerable with the use of radio control (RC). All types of model vehicles have had RC systems installed in them, including ground vehicles, boats, planes, helicopters and even submarines and scale railway locomotives.

  5. Radio control - Wikipedia

    en.wikipedia.org/wiki/Radio_control

    Radio control (often abbreviated to RC) is the use of control signals transmitted by radio to remotely operate a device. Examples of simple radio control systems are garage door openers and keyless entry systems for vehicles, in which a small handheld radio transmitter unlocks or opens doors. Radio control is also used for control of model ...

  6. AN/PRC-77 Portable Transceiver - Wikipedia

    en.wikipedia.org/wiki/AN/PRC-77_Portable_Transceiver

    AN/PRC-77 Portable Transceiver. AN/PRC 77 radio and handset. Soldier using a PRC-77 (top) with the KY-38 "Manpack," part of the NESTOR voice encryption system that was used during the Vietnam War. U.S. Marine carrying a PRC-77 during a training exercise in 1989. AN/PRC 77 Radio Set is a manpack, portable VHF FM combat-net radio transceiver ...

  7. Servo (radio control) - Wikipedia

    en.wikipedia.org/wiki/Servo_(radio_control)

    RC servos are usually powered by the receiver, which in turn is powered by battery packs or an electronic speed controller (ESC) with an integrated or a separate battery eliminator circuit (BEC). Common battery packs are either NiCd, NiMH or lithium-ion polymer battery (LiPo) type. Voltage ratings vary, but most receivers are operated at 5 V or ...

  8. Regenerative circuit - Wikipedia

    en.wikipedia.org/wiki/Regenerative_circuit

    The tickler coil is visible inside the tuning coil and is turned by a shaft from the front panel; this type of adjustable transformer was called a variocoupler. A regenerative circuit is an amplifier circuit that employs positive feedback (also known as regeneration or reaction ). [1] [2] Some of the output of the amplifying device is applied ...

  9. Radio receiver - Wikipedia

    en.wikipedia.org/wiki/Radio_receiver

    A portable battery-powered AM/FM broadcast receiver, used to listen to audio broadcast by local radio stations. A modern communications receiver, used in two-way radio communication stations to talk with remote locations by shortwave radio. Girl listening to vacuum tube console radio in the 1940s.

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