Blown fuse alarm (CB8967E)

We found this circuit in a 1980s documentation. The circuit uses general purpose transistors, triggering an LED indicator.

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Zener Test (CB5326E)
With calibrated RV1 it is possible to find a zener diode voltage. The integrated circuit is 0 741...
Symmetric Power Supply (CB16761E)
This power supply was originally created for the CB16760E (Loudness System) but can be used in any...
Sequential Turn Signal (CB23940E)
This car turn signal circuit was found in the April 1969 issue of Radio Electronics magazine. The...