12-17-2013, 08:56 AM
Hi Bob,
I've had more than a few model 80 sets pass across my bench, and I have previously owned an 80 that had the extra aluminum shield to the right as your picture shows. I do not know why they used a smaller shield, unless it was because of the larger shield on the other 36 tube? I've seen 80 sets that had one shield over the 36 on the right (only), over the 36 tube on the left (only)...I think Philco must have experimented with different tube shield ideas until they settled on using one shield.
Since your set has a Mershon electrolytic, I would guess that's an earlier production...not the earliest as it does not have the extra 10 uF electrolytic in the B- line, under the chassis...
I've had more than a few model 80 sets pass across my bench, and I have previously owned an 80 that had the extra aluminum shield to the right as your picture shows. I do not know why they used a smaller shield, unless it was because of the larger shield on the other 36 tube? I've seen 80 sets that had one shield over the 36 on the right (only), over the 36 tube on the left (only)...I think Philco must have experimented with different tube shield ideas until they settled on using one shield.
Since your set has a Mershon electrolytic, I would guess that's an earlier production...not the earliest as it does not have the extra 10 uF electrolytic in the B- line, under the chassis...
--
Ron Ramirez
Ferdinand IN
