14:50:01 < tsaavik> hey all, I'm used to using a cheap usb scope. I just got a 
                    tek2213 analog scope this weekend and am having trouble 
                    doing the math on the div marks, can anyone point me 
                    towards a tutorial/cheatsheet/guide to getting better at 
                    this?

14:50:25 < SpeedEvil> you mean what the horizontal divisions mean?

14:51:09 < tsaavik> yes, i'm having trouble fully understanding it, and doing 
                    the math :D

14:51:15 < SpeedEvil> set it to 50us/division, and if a wave takes 4.5 
                      divisions to make a complete cycle, then it takes 4.5*50 
                      = 220us
14:51:23 < SpeedEvil> The frequency is 1/220us
14:51:39 < SpeedEvil> Or about 4.5khz
14:57:07 < SpeedEvil> volts work basically the same

14:57:12 < tsaavik> so really, i can think of timebase as a scale like volts

14:58:02 < SpeedEvil> one wrinkle - once you twiddle the 'variable' 
                      settings on teh volts or timebase settings, you have no 
                      easy way (typically) of knowing it's set to 
                      3.8us/division (or so)

15:00:33 < SpeedEvil>  you mean like the "cal" knobs? 
          http://tinyurl.com/ppt6rk (ignore the yellow boxes)

15:06:03 < SpeedEvil> yes - when horizontal, that 
          indicates the scope is calibrated - the writing on the knobs means 
          something

15:06:39 < SpeedEvil> if you twiddle a knob, then 
          it might be  2v/division, on the 1v/division setting, for example
                    module. Which should be simple, as Casper said.

15:51:49  so really, once i convert something to ms its 1:1 for khz
15:52:17  so my goal should be to get to ms level, and not worry about 
                   whole seconds

15:53:07  1KHz = 1000Hz
15:53:47  though yes, you can do .1ms = 10KHz - rateher than .0001s 
                     = 10000Hz