How do I make a simple XTAL oscillator to test out my scope?

[Beamin]

I have some 36MHz and 17.something MHz crystals and I would like to make a simple circuit to test out my new scope. Does the design dictate what kind of wave they output such as square vs sine? When I search nline I find Xtal circuits but they seem to be part of more complex circuits and I just need them to oscillate. I don't have any other logic beside a 555 just regular through hole parts to work with including some RF trans and jfets.

[lordvader88]

I'd say make so RC oscillators, and some LC oscillators at typically lower freq. 1st. For the sake that at really high F, the signal might be so small on your scope that u chase noise for awhile wondering if its the signal or not.

Regardless look up some  Collpits, Hartley, Miller, etc oscillators for LC and crystal circuits. I usually add variable res/caps whenever possible so that I can see if stuff changes, why not...


and here' "Crystals Made Clear ptII)
http://techdoc.kvindesland.no/radio/ymse1/20061216154510328.pdf

I just through together a few oscilattors on a little vero-PCB. And I used 8p DIP sockets, to plug any wired the same transistor, and caps/xtal/inductor/s into it

Worked a charm and I can see it on my scopes, and no doubts if the are operating.


I need JFETs in CANADA NOW, not 3 months from now from China

[rdl]

You can make simple square wave crystal oscillators using CMOS logic chips. I've used 7404 and 4521, but you don't even really need the crystal just for messing around. RC oscillators are fine as long as you don't need super stability.

[bjcuizon]

How about something like w2aew's: