This has become a very useful device, which can be be found on Alan W2AEW You tube channel, it's a crystal checker,it's hooked up to your scope and frequency counter. I built this in probably my favourite method Manhattan or island style.
So here is my chance to say "Thanks Alan". This is going in a box & belongs on the bench , I'm using a Ali or maybe a ABS box, couple of grippers to connect to the Crystal, and a couple of BNC's for scope and Freq counter. I'll post a final picture shortly.