With this circuit of a Popular Electronics from the 90's it is possible to test a diode with the oscilloscope visualizing its characteristic curve. The transformer can have currents starting from 100 mA.
This circuit is from a 1967 US publication. The configuration can serve as a basis for designs...
We found this digital scoreboard in a 1998 publication. It has two 7-segment displays, but it can...
This simple trigger circuit was found in a 90’s American documentation. The integrated circuit is...