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An FM tracer was developed using the LM3909 integrated circuit (IC) along with several supporting components. This 1.5V FM tracker serves as an indicator of revenue sources by emitting a signal through an LED. The FM tracking circuit operates...
The TDA4866 is a 90-color power amplifier designed for vertical deflection systems, operating at a frequency range of 50 to 160 Hz. The CRMM circuit is implemented to ensure a high current drive input. The amplifier features a dual...
This circuit diagram represents a simple electronic combination lock utilizing the IC LS7220. The circuit is designed to activate a relay for controlling any device (on and off) each time a specific combination of four digits is entered. It...
This circuit was utilized in the early days of radio for signal reception. It can employ nearly any battery-operated triode, such as a type 30. The "A" battery provides 3 V, R2 is a 100-ohm rheostat, and the coils...
The RS485 bus is a widely used serial bus standard that employs balanced differential transmission and reception techniques, enabling it to effectively suppress common mode interference. It is particularly advantageous for communication distances ranging from tens of meters to...
The circuit is designed to provide several constant current outputs to the load resistor RL. The first RL is floating and is rarely utilized. The second RL serves as a virtual ground and is not commonly used either. The...
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