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Circuit Bench

  • LA1905 Power supply (CB24572E)

      This little-known regulator today was found in a Radio Electronics circuit from December 1978. The...

  • Variable output for the 7812 IC (CB24826E)

      The figure shows how to vary the output voltage of a 7812 regulator between 12 V and 2 V less than...

  • Very Low Consumption Alarm (CB12364E)

      In the waiting condition, the consumption of this alarm is extremely low, of the order of...

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