50khz oscillator

[scanpatton]

Hi all....
I need to build an oscillator using descrete
components for a project im doing..
i would like to keep it as simple as possible.
only thing it must have a fixed 50KHz output. would anybody out there have any ideas or circuit diagrams that might be helpfull..
I would really appreciate any help or input with this...

 

[ericgibbs]

Hi all....
I need to build an oscillator using descrete
components for a project im doing..
i would like to keep it as simple as possible.
only thing it must have a fixed 50KHz output. would anybody out there have any ideas or circuit diagrams that might be helpfull..
I would really appreciate any help or input with this...

hi,
Have a look at this option.

Astable Multivibrator

 

[kblack]

What wave form are you wanting, square, sine, other?

 

[scanpatton]

i need a square wave output. i was looking at different circuit diagrams but am having difficulty with the values of the components to give a 50khz wave...

 

[kblack]

a 555 timer is cheap and straight foward. It's adjustable duty cycle can give a square wave.

 

[ericgibbs]

a 555 timer is cheap and straight foward. It's adjustable duty cycle can give a square wave.

hi kb,
The OP said it must be discrete components.. not ic's.. no idea why, except it may be a school assignment.

 

[Hero999]

Multivibrator - Wikipedia, the free encyclopedia
**broken link removed**
**broken link removed**
+V must be under 5V and it'l probably work reliably down to 2V.

Q1 and Q2 are general purpose transistors e.g. PN2222A or BC548.