11-26-2005, 11:25 AM
I've worked on a lot of 80 and 84 sets; the only thing I've ever done to a 57 was to change a power transformer in one that had otherwise been recapped.
The 84s always seem to outperform the 80s, in my experience. On a decent longwire, I can get a fair amount of distance as well as locals on an 84. On most 80s, I do well to get the locals.
The one 57 I did the transformer transplant on performed really well, like an 84.
It has been my experience that in order to get the most performance out of these sets, that one needs to replace all carbon resistors as well as all paper and electrolytic capacitors. The resistors in these are often way out of tolerance.
As these use an autodyne mixer-oscillator circuit similar to Model 89, baking the oscillator coil forms and rewinding them is also something that should be done for optimal performance.
The 84s always seem to outperform the 80s, in my experience. On a decent longwire, I can get a fair amount of distance as well as locals on an 84. On most 80s, I do well to get the locals.
The one 57 I did the transformer transplant on performed really well, like an 84.
It has been my experience that in order to get the most performance out of these sets, that one needs to replace all carbon resistors as well as all paper and electrolytic capacitors. The resistors in these are often way out of tolerance.
As these use an autodyne mixer-oscillator circuit similar to Model 89, baking the oscillator coil forms and rewinding them is also something that should be done for optimal performance.
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Ron Ramirez
Ferdinand IN
