500-kHz FM Oscillator Circuit Card Schematic Diagram (Assembly A4)
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METAL DETECTOR
When the receiver is tuned to a medium wave radio station, feedback howl caused by the transmitter may occur when the coil and radio are positioned above or near a metal object. The search head is constructed from a margarine...
remote control for electrical
A circuit for a remote control unit utilizes radio frequency signals to operate various electrical appliances. This remote control unit features four channels, which can be expanded to twelve. Unlike typical remote control circuits that rely on infrared light for...
Metal detector using radio frequency
This metal detector schematic circuit is based on a transistor radio as a detector. This metal detector is entirely different from other metal detectors because this circuit does not have a speaker. With the radio tuned to a weak station,...
SEISMIC RADIO 500mHz - 200Hz frequency range
The most popular network is MED-NET, which encompasses the entire Mediterranean Sea with its observation points. The accompanying map illustrates these observation points. For more information about this network, which is part of the Italian Geophysical National Institute, the official...
LM909 radio telecontrol receiving decoding circuit diagram
The performance indices of the telecontrol receiving decoding circuit are as follows: radio frequency (f) = 27 MHz, audio frequency (f) = 5.5 kHz, 100% modulation in square-wave form; radio frequency deviation is ±600 Hz, and the frequency shift keying...
schematic monitor
A schematic diagram in hard copy related to the computer CSIRAC, possibly dated 1961. This schematic diagram illustrates the detailed connections between all the components in the circuit. Such diagrams were utilized for circuit construction and subsequent testing. For CSIRAC,...
AF2310 radio controlled motor circuit design project
This circuit resembles that of a car radio-controlled toy with seven control functions: forward, forward-left, forward-right, backward, backward-left, backward-right, and stop. Additionally, this radio frequency circuit can be utilized for other electronic circuits that require a simple wireless motor controller....
schematic clock
A hard copy schematic diagram related to the computer CSIRAC. The schematic diagram illustrates the detailed connections between all components in the circuit. It is used for building the circuit and later for testing. For CSIRAC, the most common components...
fm oscillator with bly87
C1 = 100 nF multilayer or ceramic capacitor; C2 = 4.7 pF ceramic capacitor; C3 = 100 nF ceramic capacitor (1 nF or 10 nF can also be used); C4 = 40 pF trimmer capacitor; C5 = 4.7 pF ceramic...