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| AC Dimmer Circuit |
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| vidarr:
I am having a problem with this dimmer circuit. The circuit was working until my wife stepped on it. The DIAC and one of the resistors were destroyed. I replaced the DIAC with exact match. The resistor I am not too sure. It looked like 2.2k Ohms color bands. I put the circuit back together and it was not working. So, I rebuilt the whole thing with new parts same values on everything except the one 2.2k resistor that I am not sure of. Pretty sure I got the circuit right, but it is still not working. Can someone take a look please? Thanks edit: I can take a picture of the as-built circuit if needed. |
| Zero999:
It looks fine to me. What do you mean by 1k capacitors? Presumably that's 1kpF which would be 1nF? Not 1kF, which would be the size of a house! |
| soldar:
--- Quote from: Zero999 on December 27, 2018, 01:51:14 pm --- What do you mean by 1k capacitors? Presumably that's 1kpF which would be 1nF? Not 1kF, which would be the size of a house! --- End quote --- It is quite customary to express the value of capacitors in pF unless otherwise indicated. The circuit looks good to me and should be quite easy to troubleshoot. |
| vidarr:
It is these... The orange are the old. The blue is one of the new ones. Also, I had the two resistors in reversed positions. The 12k goes between the capacitors. Does it still seem OK? edit: I have power in. What is the next best thing to test? This may be lame, but I am still a little nervous around mains power. I don't want to be poking around in there more than needed. Thanks. |
| soldar:
Not much to go wrong there. Are you sure all the components are good? And they are correctly connected to each other? |
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