solder followed by anger
- Oct 8, 2014
- 4
- Joined
- Oct 8, 2014
- Messages
- 4
good afternoon ladies and gentlemen,
I have been banging my head on my workbench for a few days now and figured it was time to ask for some help.
I have been trying to build a little big lamp for a while now and thought I had it all figured out until I transferred the components to the perfboard. I had the pictured circuit in working order on the bread board and to the best of my knowledge everything made it to the perfboard the way that it should have.
The only things I have seen is that when powered up i get no lights, 12.22 vdc going in from the wall wort, through the 555 timer (ic1), but at the nte darlington array (1c2) i get - negative 25 to negative 114 mv relative to the position of the potentiometer. Soldering appears to be complete and un shorted.
That being said i am newb to doing this sort of thing and more than likely messed something up. just following directions don't fully understand why these things do what they do.
Thankyou for your time appreciate any help.
I have been banging my head on my workbench for a few days now and figured it was time to ask for some help.
I have been trying to build a little big lamp for a while now and thought I had it all figured out until I transferred the components to the perfboard. I had the pictured circuit in working order on the bread board and to the best of my knowledge everything made it to the perfboard the way that it should have.
The only things I have seen is that when powered up i get no lights, 12.22 vdc going in from the wall wort, through the 555 timer (ic1), but at the nte darlington array (1c2) i get - negative 25 to negative 114 mv relative to the position of the potentiometer. Soldering appears to be complete and un shorted.
That being said i am newb to doing this sort of thing and more than likely messed something up. just following directions don't fully understand why these things do what they do.
Thankyou for your time appreciate any help.