Transistor Flip-Flop (CB19897E)

This conventional flip-flop configuration with two transistors was found in documentation from the 1980s. Transistor support equivalents.

| Clique na imagem para ampliar |

Dip Meter with Tunnel Diode (CB23881E)
This is the circuit for the HM-10ª, an instrument sold by Heathkit. The circuit is from a Radio...
Undervoltage Indicator (CB4988E)
This circuit indicates when the monitored voltage drops below the value determined by the divider...
CMOS Drive for Low Level Activation (CB13778E)
This circuit, from a 1975 Motorola manual, uses a power Darlington transistor of the time. We can...