2N4987 and 2N4990 (IP057E)

Unilateral switch (SUS) with 8 V of trigger voltage. This component is used to control SCRs and other applications.

Amplifier with polarity inversion (CB6785E)
Suggested by Siliconix in documentation from the 90's, this circuit supports current equivalent...
1800 Hz Decoder (CB20352E)
This circuit decodes a 1800 Hz tone used in communications. The circuit is from an American...
Mini FM Station (CB16404E)
This circuit was obtained in 1981 documentation. It is an FM transmitter that can serve to emit...