03-15-2023, 10:47 AM
Take this as advice from experience...
As "our" radios age, the chassis metals, the bits that are riveted, screwed and soldered together develop corrosion between dissimilar metals. Even if not visible and even if a DC meter "seems" to indicate the joint is O.K. RF does not like a joint with such corrosion. There is steel, brass, nickleplate, cadmium & zinc all crushed together in, well, an unhappy marriage.
When a chassis is in some state of disassembly, take the time to re-solder chassis soldered joints and riveted electrical joints, this can be tough unless a larger iron is used but chassis heating with a heat gun helps. If a riveted electrical joint can't be soldered, drill out and used hardware with serrated washers.
GL
Chas
As "our" radios age, the chassis metals, the bits that are riveted, screwed and soldered together develop corrosion between dissimilar metals. Even if not visible and even if a DC meter "seems" to indicate the joint is O.K. RF does not like a joint with such corrosion. There is steel, brass, nickleplate, cadmium & zinc all crushed together in, well, an unhappy marriage.
When a chassis is in some state of disassembly, take the time to re-solder chassis soldered joints and riveted electrical joints, this can be tough unless a larger iron is used but chassis heating with a heat gun helps. If a riveted electrical joint can't be soldered, drill out and used hardware with serrated washers.
GL
Chas
Pliny the younger
“nihil novum nihil varium nihil quod non semel spectasse sufficiat”
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