100W RF Amplifier with BLY94
This is a 100W RF amplifier built based on RF power transistor BLY94. Active components: BLY94 Coaxial cable length :…
UHF TV Antenna Booster
This is the circuit diagram of UHF band TV antenna booster with 15dB gain power. This low cost antenna booster…
LED Color Fade Effect
This is the circuit of LED color fade effect. Just like the name of the circuit, the light intensity of…
2 x 22W Stereo Car Audio Amplifier with TDA1553CQ
This is the circuit diagram of 2 x 22W stereo car audio amplifier. The circuit is powered by a single…
80W Power Audio Amplifier with LM12
This is the circuit diagram of 80W power audio amplifier based on power IC LM12. The circuit kit is sold…
Safer Security System Alarm
Here the circuit diagram of safer security system alarm. There are many security systems use a closed loop of wires…
15W FM RF Amplifier with 2SC2539
This is a 15W FM RF amplifier circuit which build based on RF Power Transistor 2SC2539. 2SC2539 is a silicon…
Dynamic Microphone Amplifier
Here is the dynamic microphone amplifier circuit diagram. This circuit should be perfect for dynamic microphone... Dynamic microphones are versatile…
22W Stereo Power Amplifier with TDA1554
Here the circuit diagram of 22W stereo power amplifier. Powered with main power IC TDA1554Q, this circuit works up to…
FM Wireless Microphone
Below is the circuit diagram and PCB layout of FM wireless microphone: The range of frequencies for the FM broadcast…