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Circuit Bench

  • 20 W Amplifier (CB4251E)

          This amplifier with complementary output transistors delivers a 20 W load at 80 ohms. We find it...

  • Low Drift Amplifier LM34001 (CB15276E)

      Other operational amplifiers from the same family such as MC34002, MC35001, MC34004 and MC35004 can...

  • Telephone warning (CB9115E)

           This circuit activates a warning lamp when an incoming call is received. We found it in an 80s...

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