09-19-2024, 10:25 AM
Hi Rich,
From my experience, unfortunately it is not uncommon to find the power transformer in the 39-116 to be overheated and possibly shorted. I have seen many examples that have either had their transformer replaced or are found with a damaged transformer. My thoughts on these are:
-For the physical size of the transformer and the demand this large chassis is putting on the transformer, they build up a lot of heat.
-The rubber wiring that was used by Philco and other manufacturers at that time deteriorated and shorted. The rubber coating turned rock hard, and the excessive heat accelerated the problem.
I am currently working on a 39-3116X which is the Canadian version of the 39-116X. Philco in Canada didn't use rubber covered wiring (Yay!!!) but on the 39-3116 chassis, they did source a number of specialized parts from the U.S. parent company, two of them being the power transformer and the selector lamp wiring harness. When I found this particular set, it had a replacement transformer haphazardly "installed" and I could tell from the burn marks under the chassis that a catastrophic end had come to the original transformer.
I was able to source a much beefier transformer to put in it...its from a late 40's Philco television! It has all the correct voltage windings, and it will juuuuuust fit into the chassis.
From my experience, unfortunately it is not uncommon to find the power transformer in the 39-116 to be overheated and possibly shorted. I have seen many examples that have either had their transformer replaced or are found with a damaged transformer. My thoughts on these are:
-For the physical size of the transformer and the demand this large chassis is putting on the transformer, they build up a lot of heat.
-The rubber wiring that was used by Philco and other manufacturers at that time deteriorated and shorted. The rubber coating turned rock hard, and the excessive heat accelerated the problem.
I am currently working on a 39-3116X which is the Canadian version of the 39-116X. Philco in Canada didn't use rubber covered wiring (Yay!!!) but on the 39-3116 chassis, they did source a number of specialized parts from the U.S. parent company, two of them being the power transformer and the selector lamp wiring harness. When I found this particular set, it had a replacement transformer haphazardly "installed" and I could tell from the burn marks under the chassis that a catastrophic end had come to the original transformer.
I was able to source a much beefier transformer to put in it...its from a late 40's Philco television! It has all the correct voltage windings, and it will juuuuuust fit into the chassis.