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.

| Clique na imagem para ampliar |

High Speed Amplifier OP05 (CB19711E)
The operational amplifier used in this application is uncommon today. This Raytheon circuit can be...
Triac On-Off Power Control (CB24045E)
This conventional bistable power control circuit using triac was found in the June 1970 Radio...
Coilless TTL Transmitter (CB14823E)
This short-range experimental transmitter emits a signal with many harmonics, without modulation. It can...