10-28-2013, 06:20 PM
Was able to spend a few hours on the Crosley and p/s. Finish up the p/s except for a terminal strip. I add regulator to the filament buss so it is adjustable from 1.2v to 5v. Under load I'm getting about a 2.5v drop across the regulator. Will have to look into that to see it I can jack it up a little. On the b+ side of things I had 7K tied across the 220v buss It was running a little hot so I added another 5K in series with the 7K which work very well. At the top of the 7K resistor I had 140vdc and was able to set the taps a 90 and 22v without a problem.
Onward to giving it a try on the radio. So I hooked up the filament to see if I could get the tube to light. When I attached the wires to the circuit the 6v dropped to 0. Hmmmm Check thing over and found that I had wired the regulator wrong. Correct the problem and now all is good well almost. Two of the three tube where lit. Hmmmm Tried another tube, didn't fix it. Started to measuring voltages and found that the heavy buss wire had broken away the connection at the socket. Resolder the connection and all was good so far.
http://www.flickr.com/photos/53710524@N06/10544855416/
More Later
Terry
Onward to giving it a try on the radio. So I hooked up the filament to see if I could get the tube to light. When I attached the wires to the circuit the 6v dropped to 0. Hmmmm Check thing over and found that I had wired the regulator wrong. Correct the problem and now all is good well almost. Two of the three tube where lit. Hmmmm Tried another tube, didn't fix it. Started to measuring voltages and found that the heavy buss wire had broken away the connection at the socket. Resolder the connection and all was good so far.
http://www.flickr.com/photos/53710524@N06/10544855416/
More Later
Terry
