Two things come to mind with using silver solder. 1. It is stronger. 2. Most importantly, if you are soldering silver plated parts the plating will become dissolved in the normal lead tin solder. A 3% silver lead tin solder will prevent this migration.
Gran K6RIF
At 12:50 2/1/2005, you wrote:
Hi,
I have a modified UHF mitrek mobile in repeater service which is emitting a strong signal at 1/3 of the LO mixer injection frequency. Before I travel to the site which is over 300 miles away, I'd like to make a list of things to check when I get there. I know the preselector can be problematic, as well as the channel elements themselves.
What have the lest members tried with success to mitigate the LO radiation from Mitrek mobiles?
I know that this radio should have have the preselector cold-end helical coils resoldered. A Cactus technical article mentions this should be done with silver solder.
Does anyone know why silver solder is preferred?
Steve
WA6ZFT
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