VHF Amplifier with 30 Watts Power

The circuit was designed for the purpose of increasing an input signal of 4 Watts to 6 Watts operating on the VHF radio frequency band specifically the FM band with 88 to 108 MHz frequency.

Antenna Tuning Unit via Medium Wave

The circuit is intended to produce a simple antenna that has the capability to be tuned at medium wave frequency which complements the antenna of a radio receiver, without having to use any external power.

TV Preamplifier via UHF Band

The design of the circuit is aimed to create a preamplifier for television systems that would operate in the UHF frequency range of 450 MHz to 800 MHz and increase the weak TV signals.

Wideband Field Strength Meter for Radio Frequency

The circuit was designed to measure the electric field strength in radio frequency band where it can be applied during the modulation of AM and FM signals in the VHF range.

Self-Powered Automatic Repeater

The circuit was designed to create an automatic repeater that would retransmit a received signal over the amateur radio frequency band.

FM Transmitter Circuit Providing 500mW Output

The circuit was designed to produce a 500mW output power transmitter whose signal modulated by FM using four transistors.