18W Audio amplifier
25W MOSFET amplifier
Headphone amplifier
Portable headphone amplifier
2W amplifier
4W amplifier
8 watt audio amp
20W Amplifier
50W Amplifier
100W RMS Amplifier
2-Channel Power Amplifier
25W MOSFET audio amplifier
50W audio amplifier using ICL8063
Amplified ear for surveillance
20dB VHF Amplifier
30 watt FM linear amplifier
Linear FM 50 watt amplifier with BLY90
60W RF linear amplifier using IRF840
Push-Pull Class A Amp using type 5687 dual triodes
Push-Pull Class A 2A3 Stereo Amp
Single Ended Class A2 SV811-10 Stereo Amp
Audio amplifier output relay delay
Spatial Distortion Reduction Headphone Amp
HeadBanger Headphone Amp
2W Amplifier
TDA2030 8 Watt amplifier
Headphone monitor amp
50W audio power amplifier
Bi-Directional 2.4 GHz One Watt Amplifier
Bi-Directional 900Mhz One Watt Amplifier
20 Watt GaAaFET Power on 2.3 GHz
1Watt 2.3 GHz RF Amplifier Using a MRF2001
2.3 GHz Power Amplifiers
2304 and 3456 MHz Power Amplifiers
High quality exponential VCA
16 Watt amplifier
8 Watt amplifier
Power amp schematic (PDF)
20 Watt Class-A Power Amplifier
El-Cheapo -A Really Simple Power Amplifier
Single Chip 50 Watt / 8 Ohm Power Amplifier
Hi-Fi Headphone Amplifier
100W Guitar Amplifier
Death of Zen (DoZ) – A New Class-A Power Amp
Soft-Start Circuit For Power Amps
Thermo-Fan To Keep Your Amp Cool
Audio Amp Output Power Limiter
55W (Originally 75W) Power Amplifier
300W Subwoofer Power Amplifier
20 Watt / Channel Stereo Power Amplifier
Mini bench amplifier (LM386)
12 Watt Valve Guitar Amp