

Topic Entry
- Radio tuning PLL frequency synthesizer scheme
- transistor mic preamp with controls
- 300watts stereo amplifier using transisters
- 12VDC to 220VAC Inverter with 555 Timer
- 10watt fm transmitter circuit
- 60 hz 3 phase inverter impulse generator schematic
- 2n3055 power supply schematic
- nu vot
- current booster
- convert TTL output sinewave