Amplifier circuit diagrams
Band 2 Preamplifier
This is a VHF amplifier for the Band 2 Radio Spectrum tuning approximately 88 - 108 Mhz. Read more...SW Aerial Amplifier
A radio frequency amplifier to boost SW reception. Frequency range approximately 5 to 20 MHz. Read more...30 Watt VHF Amplifier
The 30 watt amplifier schematic shown below provides an appropriate power boost with an input of 4 watt up to 6 watts. The circuit is designed to cover 88-108MHz FM Broadcast Band. Read more...Q- Multiplying Loop Antenna
This circuit is designed to be used in conjunction with the standard 4 foot square loop used in MW for long distance reception. Read more...Medium Wave Active Antenna
This is a compact three transistor, TRF receiver with fixed feedback. It is similar in principle to the ZN414 which is now replaced by the MK484. The design is simple and sensitivity and selectivity of the receiver are good. Read more...UHF Preamplifier
This circuit is designed to work at UHF frequencies in the range 450-800MHz. It has a gain of around 10dB and is suitable for boosting weak TV signals. Read more...
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