Found in a 90s Radio Electronics, this circuit is intended to drive a neon lamp from a 9 V source. The positive supply is made on pins 4 and 8.
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...