B3F-4055 switch bounce

[Demon]

i would not expect to see any "bouncing" at 50mS per div , @ 0.5mS/div you are more likely to see something

I went back and redid the tests. Here's the falling edge of a SR-25 rotary switch on a BK Precision 1560 at 1ms:



(Let me know if there's a better setting for the scope. I just went with trial and error.)


And the rising and falling edges on the DSO-TC3 at 1ms:





It's not even remotely close to similar. I should have started testing with the BK; its buttons aren't making the screen jump around.

The Tektronix 466 was giving mismatched readings; giving a jagged trace, then curves, then just dropping on/off. It would need a serious cleaning, which I can't afford. And that wouldn't repair worn switches and pots, they'd need to be replaced. Let alone if there's fried circuits in there. I figure the old owner got rid of it for a reason.


Here's a pic of the SR25 switch. That wiper seems to bounce a lot as it moves out of one position and into another.