Blown Fuse Alarm (CB6109E)

We found this circuit in a 1967 Electronic design. However, it can be easily implemented even today as it uses only common diodes.

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Delayed pulse generator (CB8523E)
Found in 90's Electronic Engineering, this circuit produces a pulse with a delay that depends on R3...
Voltage Controlled Amplifier (CB24873E)
This circuit was found in the December 1984 issue of Radio Electronics magazine. The circuit has a...
Video preamplifier (CB8741E)
Found in 90s Radio Electronics, this circuit is intended for amplifying analog video signals....