We found this circuit in a Motorola manual. The circuit has the capacitor charging at 15 to 30 V, then discharging through the coil and generating a voltage that reaches 500 V for the spark plugs.
This is a general purpose pramplifier launched in Brazil by Philips in the years 70. The BC549 is...
This circuit was found in a 90s Popular Electronics. It is possible to analyze the voltages of an...
The pulse duration is determined by the 100k resistor and the separation by the 1M resistor. The...