Capture one time signal with analog scope

[Don]

I am a newby at scopes and have purchased a used Tektronix 2246 100Mhz
4 channel analog scope. I am trying to capture a one time signal
(e.g. the sine wave decay of a resistor, capacitor and inductor
circuit). Since this is not a digital scope, is there a way to
capture and freeze the image?

thanks
Don

 

[Walter Harley]

"Don" <don@cameronsoftware.com> wrote in message
news:11149158.0403240750.4bab950b@posting.google.com...

I am a newby at scopes and have purchased a used Tektronix 2246 100Mhz
4 channel analog scope. I am trying to capture a one time signal
(e.g. the sine wave decay of a resistor, capacitor and inductor
circuit). Since this is not a digital scope, is there a way to
capture and freeze the image?

The only way to capture and freeze it is to use a camera. (The problem is
not that it's not digital; the problem is that it's not a storage scope.
There are analog storage scopes, but yours isn't one of them.)

However, if you turn the brightness up and darken the room, the phosphors
will visibly persist for a couple of seconds, which may be long enough to
see.

What causes the event? Can you retrigger it at will? If so, then create a
pulse generator of some sort (e.g., with a 555 chip), and use the pulse to
start the event and also to trigger the scope. In other words, *make* the
event be repetitive.

 

[Don]

Ahhh, very good idea. I have a BASIC Stamp microcontroller that I can
program to repeat the waveform and hopefully get the scope to repeat
this.

thanks