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I have a little problem with my fridge. The Condenser on occasion suddenly starts vibrating, so hard it slightly shakes the fridge's body. The vibration subsequently subsides and fridge continues it's more familiar humming sound. This has never happened before.
A friend tells me it's LOW...
time base
**broken link removed**
Hello guys, does anyone know how the time scale of this circuit was callibrated?
The time-scale was callibrated as 1unit=10msec, I understand the time-scale/x axis is divided into 10 pixels, i.e 10 20 30... how 1pixel is equal to 1msec is what I don't know. Why...
I have never come across a detailed method of parallel port programming in xp myself, hope someone in this forum does...
I plan to do an interface project and i'll be using win 98.
dev cpp parallel port
I do C and don't know much of C++.
you'll get that error message if you do not include the relevant header files... I see your iostream and cstdlib don't have the .h extension?
probably that's the problem...
simple oscilloscope lpt diy
thanks, helped me once again. you said the adc 0804 samples at 10khz? but it seems they are using an external clock running at ~640khz?
10 samples/cycle implies 1khz? How is that?
I think for my purpose a 10khz maximum is modest as i'm only doing it for school...
fast adc pc oscilloscope
hmm...but sampling at 10khz surely would give the circuit the capability of measuring much more than 1khz? I do wonder what could be the main reason limiting it to 1khz? The parallel port? - that'll change the oscilloscope's code entirely. By callibrating the time...
pc sound card oscilloscope input protection
1MHz? wow that's pretty high. i'm currently looking at the oscilloscope on this page:**broken link removed** the problem is that the maximum signal frequency it can display is 1khz which compares very poorly with the 1Mhz you're talking about. How do...
I was just thinking perhaps his intention was pin 10 and not pin 17. i believe since LED 10 is the first to light up and the last to go off, connecting the input of the buffer to pin 10 could give us an approximate zero crossing?
or what do you think?
well, unless we're missing something here, if the author could 'goof' on that point, then that casts a doubt over the whole project as well...
and would be very risky for one who wants to use it for school project...
or...?
But why pin 17? I understand the 3914 has an internal reference (default) of about 1.2V, so for 10 comparators that'll be 0.12v increment... :?
Each LED then lights up, as the signal increases for each 0.12v, right? But I thought the comparator would swing to Vcc / 9v when there's a...
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