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Very simple circuit help

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I have built this on a breadboard and it works!
a metronome can you believe that!


anyway i figured i would punch it in the Circuit Sim and watch how it works. Well it doesnt make sense to me at all because no current ever passes the capacitor it just stays there. Is this program correct? BTW the 8ohm is a speaker.


free java app that loads in browser
[URL="https://falstad.com/circuit/index.html[/URL]

here is the exported file

"
$ 1 5.0E-6 0.5078419037180082 24 5.0 50
R 192 96 192 64 0 0 40.0 9.0 0.0 0.0 0.5
w 192 96 96 96 0
t 96 208 192 208 0 1 -7.300220087084466 0.8413019763133704 100.0
t 192 192 288 192 0 -1 -0.8578799368986019 -0.8584779366021635 100.0
w 288 176 288 96 0
w 288 96 192 96 0
w 192 224 192 352 0
w 96 288 288 288 0
w 288 288 288 208 0
w 288 288 336 288 0
w 192 352 336 352 0
r 336 288 336 352 0 8.0
c 96 208 96 288 0 2.2E-5 -8.158100023983067
r 96 96 96 208 0 20.0
g 192 352 192 384 0
o 11 64 0 35 10.0 1.6 0 -1
"

thanks
Michael
 
Last edited:

danielsmusic

New Member
That simulator is not very good, it's probably not simulating your circuit properly.
 
probably? Well what is a good sim that shows the current like this one?
'
 

mrlooneytoon

New Member
There is current through the capacitor once the switch is closed, after 5T it has completely discharged so it looks like there is no current.

But agree that's a weird simulator.

Use MultiSIM by National Instruments (download trial version)
Build your circuit on there using virtual parts and hook up a ammeter and oscilloscope between the test points on the capacitor.
 
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