Differential Output Amplifier (CB6135E)

This circuit of old American documentation (1965) can be applied to any transistor.

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100 Hz High Pass Filter (CB6545E)
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Simple Transistor Test (CB10688E)
This circuit was found in a 1963 publication. Its purpose is to test general purpose NPN and PNP...
Basic Monostable Using the 7555 (CMOS) (CB120E)
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