CRYSTAL TESTER
A HOMEBREW BEAUTY:

THIS IS THE CIRCUIT AS USED IN
THE CRYSTAL TESTER PROJECT.

  originally from:  http://www.keirle.fsnet.co.uk/xtal.htm

 BC182  substitute :circuit
 2N2222
 NTE123A

OVERALL VIEW :
tester1
Note the push switch to "test",  the "OK" LED and the handy
"press in" speaker terminal for the test crystal leads.
Also, 9v battery holder and leads.









THE GUTS:
tester2
Here is an inside peek at the PCB and the dremel tool cuts
for the pads.  A rather quick and dirty way to make a PCB
without traces and etching.
All components stand on the copper side of board.
Works FB!
Bonus: no ferric chloride stains!





VIEW FROM ABOVE:
tester3Another look at the  the project showing the top view.

Bonus:
BNC output to your frequency counter for exact crystal status.