modified 11 years ago

Basic astable circuit.

01:49:23

From Forrest M.  Mims Engineer's Notebook Volume 3.  Time on = 0.693 x (Rtop + Rbottom) x C.  Time off = 0.693 x Rbottom x C.  Frequency = 1.44 / ((Rtop + 2 x Rbottom) x C). 

published 11 years ago

Addramyrz

11 years ago

Didnt really use 1MOhm resistors did he?

Sine_eyed

11 years ago

@Addramyrz- actually I'm looking at that very notebook now, and the frequency of this circuit falls directly in accordance with the chart provided..

add comment in editor

EveryCircuit is an easy to use, highly interactive circuit simulator and schematic capture tool. Real-time circuit simulation, interactivity, and dynamic visualization make it a must have application for professionals and academia. EveryCircuit user community has collaboratively created the largest searchable library of circuit designs. EveryCircuit app runs online in popular browsers and on mobile phones and tablets, enabling you to capture design ideas and learn electronics on the go.