This dimmer for the 120 V (117 V) network was found in the magazine Electronics Now of August 1995. The triac is according to the load that must be ohmic.
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...