Radio. - This is one of implementation transistors to build VHF Dip meter in this time. It is only need small component completed to build this project in this time.
Beside we will show you electronic design circuit and component parts need, we also will give you global description about this circuit. So, please enjoy to continue reading this article until finish and get more useful.
Electronic Circuit Design
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| Image Courtesy of https://www.eleccircuit.com/ |
Component Parts
- Transistors
- Inductor
- Capacitors
- Resistors
- Variable resistors
- Battery
Description
VHF dip meter based on transistors high voltage generator using NE555 IC for you. According Eleccircuits blog mentioned that this is a simple VHF dip meter circuit.The DIP meter is the frequency meter by use the LC resonance circuit that adjustable until the frequency show peak amplitude. The circuit include variable frequency generator circuit, rectifier and a moving coil meter.
In the oscillator include two transistors T1 and T2. The tuning circuit include C1 and coil Lx this coil will is outside the metal box. When apply the power to circuit, the voltage from the oscillator will be rectifier by diodes D1 and capacitor C2. Then, send signal to P1 that use to adjust meter.
If bring the coil Lx near the others LC circuits, that resonance same the frequency is generated. This LC circuit will pull power from Lx, cause the lower voltage drop across the meter. The adjusting frequency by C1 if the frequency resonance can read frequency by the meter.
In the oscillator include two transistors T1 and T2. The tuning circuit include C1 and coil Lx this coil will is outside the metal box. When apply the power to circuit, the voltage from the oscillator will be rectifier by diodes D1 and capacitor C2. Then, send signal to P1 that use to adjust meter.
If bring the coil Lx near the others LC circuits, that resonance same the frequency is generated. This LC circuit will pull power from Lx, cause the lower voltage drop across the meter. The adjusting frequency by C1 if the frequency resonance can read frequency by the meter.
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