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  • Stepped Timer (ART726E)
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Circuit Bench

  • High Q Active Notch Filter MC34071 (CB15281E)

      Other operational amplifiers series, such as MC34072, MC34074, MC35071, MC35072, MC35074 d MC33071...

  • Tone Decoder (CB3966E)

          This rather sophisticated circuit does not recognize false tones, such as harmonics, and can be...

  • Precision Timer (CB15099E)

      This 100-second timer was found in a 2000 Poptronics. The magazine no longer exists, but the...

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