Circuit Diagram of Coaxial Cable Tester
2
0
0
publish time: 2020-09-24
Coaxial cables are used as transmission lines for radio frequency signals. But sometimes it is difficult to detect the transmission signal from input to output. Now, this is a simple cable tester, using four 2-input NOR gate IC 4001. As shown in the circuit diagram, test the coaxial cable by connecting to points A and B. The illuminated LED1 indicates that the cable string is connected internally; the illuminated LED2 indicates that the cable is disconnected, and the illuminated LED3 indicates that the cable is good.
See More Related Templates
This is a simple circuit to control the temperature of the soldering iron. If the soldering iron is to be kept for a long time, the heat dissipation of the soldering iron can be controlled. After turning on the soldering iron, it will take some time for the soldering iron to reach the melting point of the solder.
5
0
0
This low-cost timer can be used to introduce a delay of one minute to two hours. When the time is up, music will sound.
6
0
0
This daylight control light uses the photo resistor (LDR) as the daylight sensor and 25 high-brightness white LEDs. LED with an independent resistor in series in each row.
2
0
0
The cold current of the halogen lamp is low and it is easy to burn out. The internal rapid heating of the bulb melts the filament and shortens the bulb life. The circuit here allows the halogen lamp to soft start, thereby extending the life of the halogen lamp.
2
0
0
This is a simple circuit that can generate three different tones. You can use it as a call bell, anti-theft alarm or any other security alarm.
0
0
0
The circuit described here protects your appliances from damage due to low voltage when switched on (for example, AC motors). Keep it in the standby state, and do not supply power to the load after power-on, and can only turn on the load manually. This can prevent damage to the device and turn it on when power is restored.
1
0
0
This is a simple green LED flashlight built around a 555 timer IC (IC1) and powered by a 3V battery pack.
0
0
0
This multi-function flash includes three parts: flash, sound and light display and white LED flashlight.
0
0
0
