Windshield wiper tiner (CB9523E)

Found in old documentation, this circuit can be implemented even today with the use of a 2N2646 for the unijunction and a TIC106 for the SCR.

| Clique na imagem para ampliar |

Ultrasonic remote control receiver (CB8399E)
This circuit was found in a 90s Popular Electronics. It is used for the acoustic transmitters of 40 kHz,...
1.2 to 1.4 V Power-Supply (NI025E)
Common general purpose silicon diodes when direct biased provide a voltage fall of about 0.6 to...
Darlington Photo Amplifier (CB8316E)
Found in General Electric's 1969 documentation, this circuit uses two Foto Darlingtons to control...