Don't forget that the multimeter is designed to register the RMS (Root Mean Square) of the Peak to Peak (PP) value that the scope is showing, i.e., 0.707 X PP. If you have an an AC voltage showing 2 VAC PP on the scope, the multimeter will register 1.414VAC.
Going to have a look at this now
So are you saying MUTT41 is showing signal as 500mV as measure of each sqaure on scope = 4V x 12.6
How are you relating 0.707, of a V, mV? otherwise I'm getting it working out to 5.04V which might be right with bit of discrepancy on the 4V rough guess, means I'm measuring one of the 5V battery signals
I've just learn't that you can disable each signal on screen of sillyscope *grin* they say simple things please simple minds.lol
Below is the schematic for a TI LM741 OpAmp (fairly typical):
View attachment 61846
Plain old components.
Amazing, so by me wanting to know the basics, you are giving me a great understanding
**broken link removed**
I really needed that
**broken link removed**
Lets get sim back up running again & see whats what
ok, looking at MUTT48, how do I get the exact measurement on sillyscope, I know the dy/dx are relating to a derivitive
& how do you type below your attachment? Think I get it now, I'm looking at YA & YB which is -1.94 & 1.9 = 3.84 x 12.6, no I'm still not there, edit: or if I use .384 x 12.6 I get 4.8384 which could be because of resistance in circuit, does that mean fron VS1 through OpAmp to C1 the circuit has actually lost 0.1616V in resistance?
That's all total tosh isn't it, I have a gut feeling, why would I have had to make 3.84V .384V
Edit: I'm moving the decimal point on the wrong thing aren't I, I should be moving it on the 12.6 not the 3.84 because 1V = 1000mV
So 0.126 showing on multimeter x 3.84 showing on sillyscope = 0.483mV so 500mV display was near perfect
Man, imstruggling with this decimal place on mV, if there are 1000mV in a V 12.6mV should read as 0.0126 shouldn't it? But that makes it all wrong
Morning CBB
Right, I've definately made my mind up that each square on scope represents 500mV & we do indeed have a 3.84VAC PP signal
I need to understand math better cause I'm getting nowhere fast here, it is just making me realise how thick ~I really am