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Robert11 wrote:
For transmitting power levels, I guess there is more than enough current flow to puncture thru easily. But what about for a receiving only application, with what, micro-amps, across the gap ? Does this silicone "layer" present any problems, or signal degradation, in your experiences ? Good thing to use in coax connectors going to a receiving antenna ? Or,...? There is bound to be a voltage drop across across almost any mechanically joined conductors. A light switch has a voltage drop across it's contacts. A solder joint would a greatly decreased drop, but it's there regardless. A solder joint is a mechanical connection, while a weld is a chemical fusing. I wouldn't think the silicon layer is consistent throughout the contact area. There are most likely high areas of metal to metal contact, with the paste filling in the valleys. Any loss of the borderline contact areas due to silicon invasiveness would be more than made up for by the protection from oxygen, ozone and water given to the good 'peak' areas. The good stays good longer. We could do a simple test with a connector, some coax, a small battery, a limiting resistor and an accurate voltmeter. A series of before and after tests could be performed, trying different substances. Vaseline has been used for battery post connectors for years. As an unrelated side note, I met a mechanic once who carefully cleaned off all that white grease from back of regulators and diodes before installing them. It took him years to figure out what the stuff was meant to do. He had a real 'sinking' feeling when he found out. mike |
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