Found in a 1990 Hobbyst Handbook this circuit has an output power of a few tens of watts and serves as reinforced for the car's sound. The speaker can be 2 or 4 ohm.
The voltage gain of this DC amplifier is 100 times, given by the relationship between R2 and R1....
This device works with conventional analog phones where the headset is a magnetic type. The signal...
This full-wave precision circuit was obtained from a 90's Radio Electronics. The circuit must be...