20 MHz filter (CB6735E)

This 20 MHz bandwidth circuit was suggested by the National Semiconductor in 1970 documentation. Modern equivalent operational can be used.

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Low active cycle pulse oscillator (CB8920E)
Short pulses can be found in this 90's EDN circuit. The load is 50 ohms and the transistors are from that...
1 to 20 MHz TTL Oscillator (CB6514E)
Found in an American 1980s documentation, this circuit generates frequencies in the range...
Push Pull Output Amplifier (CB950E)
This old configuration of an audio amplifier has a push-pull two-transistor output stage. Output...