Timed Relay (CB21866E)

We found this circuit in Ferranti's 1974 transistor manual. The components are from the period. Note the relay type used.

| Clique na imagem para ampliar |

Lights On Reminder (CB12637E)
This circuit activates the horn if the door is opened with the headlights on. The circuit is for...
High Side Transimpedance Amplifier (CB5228E)
This circuit for Laser Diode power was found in a 2005 Linear Technology manual. In the diagram...
Grounding Test (CB13252E)
This circuit tests whether electronics are properly protected with internal grounding. If the...