help me with 555

From: "E.persia" <erfan.talebzadeh@xxxxxxxxx>
Date: Sat, 11 Oct 2008 03:42:37 -0700 (PDT)

hi every body
I have a signal generator thak works with 555
sometimes I see a a noise like digital FM that I think it from 50hz
220 (network voltage)
what i can do to remove it I dont know even when it comes
may be its the malfunction of breadboard
but this my problem the output square wave wavelenght decrease and
increase priodically!
what i can i do for such a thing?

.

Follow-Ups:
- Re: help me with 555
  - From: Dave

Prev by Date: Re: Robot Batteries: What to use?
Next by Date: Re: Remotely operated relay for industrial lighting
Previous by thread: 2.5D object dataset
Next by thread: Re: help me with 555
Index(es):
- Date
- Thread

Relevant Pages

who knows about noises?
... I have a signal generator thak works with 555 ... sometimes I see a a noise like digital FM that I think it from 50hz ... 220 (network voltage) ...
(sci.electronics.basics)
Re: who knows about noises?
... I have a signal generator thak works with 555 ... sometimes I see a a noise like digital FM that I think it from 50hz ... Connect a 100µF aluminum electrolytic and a 470nF ceramic capacitor, ...
(sci.electronics.basics)
Re: who knows about noises?
... I have a signal generator thak works with 555 ... sometimes I see a a noise like digital FM that I think it from 50hz ... Try explaining the question properly. ...
(sci.electronics.basics)