

Topic Entry
- regulated power supply 12 volt using ic 7812 ic experiment
- transistor mic preamp with controls
- 300watts stereo amplifier using transisters
- convert TTL output sinewave
- L200 high current regulated power supply
- Preampli a 2transistor pnp?
- ic l200
- tlo74 bass treble circuit
- 150w power amp circuit diagrams
- L2803 schakeling