This is a general purpose pramplifier launched in Brazil by Philips in the years 70. The BC549 is a low noise transistor and the circuit can operate with 9 to 19 V supplies. The drained current is few milliamperes.
This is a general purpose pramplifier launched in Brazil by Philips in the years 70. The BC549 is a low noise transistor and the circuit can operate with 9 to 19 V supplies. The drained current is few milliamperes.
