9V FM Radio Transmitter

55 years ago

Here the simple and low cost FM transmitter circuit. The frequency range of this FM transmitter should be about 89MHz…

6-10W Stereo Audio Amplifier with IC TDA2005

55 years ago

Here the schematic diagram of 6-10W stereo power audio amplifier with IC TDA2005: Components List: R1, R9 ________ 1K ohm…

British Police Car Siren

55 years ago

This is the sound generator which will simulate British police car siren. The circuit is built using 2 pieces of…

UHF TV Antenna Booster

55 years ago

This is the circuit diagram of UHF band TV antenna booster with 15dB gain power. This low cost antenna booster…

15W FM RF Amplifier with 2SC2539

55 years ago

This is a 15W FM RF amplifier circuit which build based on RF Power Transistor 2SC2539. 2SC2539 is a silicon…

FM Wireless Microphone

55 years ago

Below is the circuit diagram and PCB layout of FM wireless microphone: The range of frequencies for the FM broadcast…

Active FM/AM/SW Radio Receiver Antenna

55 years ago

This is an active FM/AM/SW radio receiver antenna, can be used for FM radio receiver, AM radio receiver and SW…

Stereo Tone Control with LM1036

55 years ago

This is a stereo audio tone control circuit which build based on IC? LM1036. This circuit will controll bass/treble level…

20 Band Graphic Equalizer

55 years ago

Here the 20 band graphic equalizer schematic diagram. This is stereo graphic equalizer, it should be 2x10 channel equalizer. Graphic…

Running LEDs

55 years ago

This is running LEDs circuit which use timer ID NE555N and logic IC 4017N. IC 555 act as a multivibrator…