While sorting through lots of really ancient stuff my old friend gave me... I excavated this thing. A 1MHz crystal oscillator...
That is a very nice oscilator, Oven controlled. Almost certainly designed to run of 24V so you can ramp it up a little. Let it warm up and watch the frequency when you gently set it on its side. One side should make the frequency go up, tilting over onto the opposite side make it down.
This is the effect of a +_ 1G force of gravity change on the crystal.
Oh yeah, I remember Dave doing a video showing this effect, a few years ago. Was interesting
Tried this morning, but sadly I can't reproduce it with this oscillator
I guess my counter is not good enough. I used the longest gate time I have, 10 seconds, so I get 0.1Hz resolution, 7 significant digits.... but not good enough apparently.
With both the oscillator and counter starting from cold, initial measurement is 1,000,030+ Hz , dropping at a steady rate.
After only 10 minutes or so, it eventually reached equilibrium and was oscillating between 999,998 and 999,999 Hz.
From that point, I let it run for one hour, and still no drift, still oscillating between 999,998 and 999,999 Hz.
So since it looked really stable, I thought OK I can make finer measurements now.
So I increased gate time to 10 seconds to get an extra digit. Was oscillating between 999,998.2 and 999,999.3 Hz.
So then I laid the oscillator on it's right side, zero change, not one single count, nada... then put it on it's left side... same.
Then put it upside down, with it's feet/mounting base up in the air... still zero change.
I must say I was disappointed !
I guess I need a more fancy counter to detect this gravity effect, oh well
If throwing it out thro it my way
[Robot voice] " I am sorry
Dave Robert, I can't do that ! "
You seeming interested in this thing means it must be a good piece... which brings extra mitivation to keep it !
Plus, you garage is full, and the only spot you could put it in the house, would be atop the fridge in the kitchen.
You trying to convince your wife it's a cool trendy ornament, would not be a convincing argument and she would ask for divorce.
I don't want to be responsible for that !