Video cable equalizer (CB21319E)

This circuit was found in a Linear Technology documentation from the 90's. The integrated circuits are from the time.

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Composite amplifier (CB20632E)
This circuit combines a low-offset and a high-speed operational amplifier. The circuit was found in...
Touch Switch (CB26207E)
We found this circuit in the 1983 Radio Electronics Special projects magazine. The components are...
Modulated Oscillator (CB22067E)
This power oscillator uses an LM380 amplifier. We found it in old English documentation. The C3...