12-16-2009, 09:37 AM
Jim
The original electrolytics used on the Model 71 were made by Mershon. They have copper containers that look really cool when they are polished up. A spray coating of clear gloss Deft, after polishing, will preserve the polished look indefinitely.
I just looked at your 71 again...I see that the electrolytics on yours were replaced with aluminum can electrolytics. No surprise, really.
I do not normally go to all the trouble I did on my "Super" 71. But this chassis was originally a rust bucket. I cleaned it up, painted it, modified it to use a 6A7 tube as 1st detector instead of the original 36. Every wire is new. Every part is new save for the B-C bias resistor, the tuning condenser, antenna and RF coils, dial scale, on-off switch, tube sockets and power transformer. The volume control and tone control aren't new, but are not original to the set, either. The oscillator coil was completely reworked - and rewound - by me.
I put globe shaped tubes in this set where they could be easily seen, for appearance only. Note that the 39/44 tubes and the 6A7 are ST (taper-top) style. The 6A7 was never made as a globe, as far as I know. The 39/44 tubes were, but since they are hidden under tube shields, I used ST types. The 71 had all globe tubes when it left the factory in 1932, and of course they were all Philco brand tubes.
More details here:
http://philcoradio.com/phorum/showthread.php?tid=709
http://philcoradio.com/phorum/showthread.php?tid=1035
http://philcoradio.com/phorum/showthread.php?tid=1244
The original electrolytics used on the Model 71 were made by Mershon. They have copper containers that look really cool when they are polished up. A spray coating of clear gloss Deft, after polishing, will preserve the polished look indefinitely.
I just looked at your 71 again...I see that the electrolytics on yours were replaced with aluminum can electrolytics. No surprise, really.
I do not normally go to all the trouble I did on my "Super" 71. But this chassis was originally a rust bucket. I cleaned it up, painted it, modified it to use a 6A7 tube as 1st detector instead of the original 36. Every wire is new. Every part is new save for the B-C bias resistor, the tuning condenser, antenna and RF coils, dial scale, on-off switch, tube sockets and power transformer. The volume control and tone control aren't new, but are not original to the set, either. The oscillator coil was completely reworked - and rewound - by me.
I put globe shaped tubes in this set where they could be easily seen, for appearance only. Note that the 39/44 tubes and the 6A7 are ST (taper-top) style. The 6A7 was never made as a globe, as far as I know. The 39/44 tubes were, but since they are hidden under tube shields, I used ST types. The 71 had all globe tubes when it left the factory in 1932, and of course they were all Philco brand tubes.
More details here:
http://philcoradio.com/phorum/showthread.php?tid=709
http://philcoradio.com/phorum/showthread.php?tid=1035
http://philcoradio.com/phorum/showthread.php?tid=1244
--
Ron Ramirez
Ferdinand IN
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