Free Electronic Circuits & 8085 projects

Electronic projects with circuit diagram and 8085 microprocessor projects.

Ultra-precision long delay circuit

Published on May 05 2011 // Timing control circuits

Do not have time to use the big electrolytic capacitor can be as short as 0.3ms, the delay for up to 3min, the use of a stable low-loss dielectric of paper or polyester film capacitors, while effectively reducing the time single-junction transistor (Q1) peak current, high resistance gate resistance R1 can be replaced.

Ultra-precision long delay circuit.