Modulated Oscillator (CB26007E)

We found this circuit that can reach 50 MHz in the February 1997 Electronics Now magazine. The integrated circuits used are not very common today.

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Multitester (CB3834E)
This simple multitester tests continuity, semiconductors, leaks, and other common component...
High Input Impedance Amplifier (CB4027E)
This configuration can be implemented with equivalent operations. The circuit is from the 1990...
Tesla Coil (CB26185E)
This circuit is one of many that we have in our section. It was taken from the Electronics...