This source with two symmetrical output voltages was found in 90s Radio Electronics. The 22 V output has a maximum current of 300 mA and the 5 V output has a maximum current of 4 A.
This amplifier for hearing aid was found in a 1968 documentation using an integrated of the time....
We obtained this circuit from a 1993 documentation. The circuit has 9 current ranges that are...
In the figure we have the transmitter of a data transmission system with optical fiber suggested by...