09-12-2008, 09:15 PM
Thanks, Brian. 
This is precisely why I chose this chassis as the "guinea pig" to perform the 6A7 mod - because it was in such rough shape.
Obviously, the power transformer is a replacement. The original was toasted.
The coils had their usual problems. And the oscillator coil was completely rewound anyway, to correspond to the Model 18 style oscillator circuit. I was really lucky in that both IF transformers were OK. The off-on-band switch responded well to a thorough cleaning.
And it was on this set that I finally managed to nail down the trick of rebuilding the electrolytic condensers so that they appear to be original, when looking at them from underneath.
Needless to say, I am quite proud of this chassis. I'll be even prouder, once I complete restoration of its cabinet, originally a Model 32B tombstone cabinet.
This is precisely why I chose this chassis as the "guinea pig" to perform the 6A7 mod - because it was in such rough shape.
Obviously, the power transformer is a replacement. The original was toasted.
The coils had their usual problems. And the oscillator coil was completely rewound anyway, to correspond to the Model 18 style oscillator circuit. I was really lucky in that both IF transformers were OK. The off-on-band switch responded well to a thorough cleaning.
And it was on this set that I finally managed to nail down the trick of rebuilding the electrolytic condensers so that they appear to be original, when looking at them from underneath.
Needless to say, I am quite proud of this chassis. I'll be even prouder, once I complete restoration of its cabinet, originally a Model 32B tombstone cabinet.
--
Ron Ramirez
Ferdinand IN
