In this circuit, from a 1974 publication the capacitor must be 1 uF and R1 10k. R2 must be 75k for greater accuracy, component tolerances must be tight. The supply must be made with voltages from 5 to 15 V.
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60 Hz x 50% Active Cycle 555 (CB13455E)
- Details
- Written by: Newton C. Braga
