

Topic Entry
- 300watts stereo amplifier using transisters
- 7812 voltage regulated power supply and the voltage on each component
- guitar pre amp using tl072
- 10watt fm transmitter circuit
- tda7000 pcb
- power amplifier 300 watt
- convert TTL output sinewave
- circuit diagram of dynamic microphone preamplifier
- 150w power amp circuit diagrams
- schematic with solid state relay installed