12-14-2016, 04:50 PM
[Image: https://dl.dropboxusercontent.com/u/5462...chdown.jpg]
Real progress today. I decided to alligator cable in the replacement IF transformer that I got on ebay. Put all the tubes in and fired it up with the dim bulb unit. Nada. Bulb not lit at all, tubes not warming up, no sound...nada. I forgot about that open resistor that parallels the pilot lamp and is in series with the tube filaments. That will surely keep it quiet.
OK...so alligator in the 22 ohm 2 watt resistor and try again. Yes! Now I'm getting nice clear sound from it.
[Image: https://www.dropbox.com/s/7cb9pxn1571olf....jpg?raw=1]
Now my remaining task will be to take that replacement IF transformer apart, do some surgery and cram it into the smaller can that goes with this set. At least I now know it can work.
Real progress today. I decided to alligator cable in the replacement IF transformer that I got on ebay. Put all the tubes in and fired it up with the dim bulb unit. Nada. Bulb not lit at all, tubes not warming up, no sound...nada. I forgot about that open resistor that parallels the pilot lamp and is in series with the tube filaments. That will surely keep it quiet.
OK...so alligator in the 22 ohm 2 watt resistor and try again. Yes! Now I'm getting nice clear sound from it.
[Image: https://www.dropbox.com/s/7cb9pxn1571olf....jpg?raw=1]
Now my remaining task will be to take that replacement IF transformer apart, do some surgery and cram it into the smaller can that goes with this set. At least I now know it can work.
