10-31-2011, 05:10 PM
Finally got to the power up point yesterday. I brought it up on my variac with no tubes no issues, then popped in the 80 tube and brought it up to around 115vac in, no issues 80 plates had about 700v on them, 5v on the filiments and I didnt check for DC. So I shutdown and tried again with all the tubes then it happened. I smelled something getting hot and saw a couple wisps of smoke at around 100vac in. I shut down in a hurry and felt around and found a resistor in the power supply getting hot (~140 deg). It's the 10k .5w resistor (#54, arrow in pic below). Not sure whats up yet I had to stop playing in radio land after I found this hopefully tonight I can take another look at it. The resistor I am using for #54 is a 10k 2w.
[Image: http://i1129.photobucket.com/albums/m501...erheat.jpg]
Also can someone tell me if the circled part of the pic is connected or just crossing over each other? I have them connected which might be causing the problem?
I also changed the title to for the thread to something more fitting..
[Image: http://i1129.photobucket.com/albums/m501...erheat.jpg]
Also can someone tell me if the circled part of the pic is connected or just crossing over each other? I have them connected which might be causing the problem?
I also changed the title to for the thread to something more fitting..
-Keith