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| Forums | Crystal Radio Think Tank ** Advanced Forum | Cleaning high-Q silver plated variable capacitor | Post Reply | Send Topic To a Friend |
| Author | Topic |
| neazoi | Posted - 27 November 2012 14:23     Hello, Does anyone have any good information about how to clean up these high-Q variable silver-plated ceramic capacitors? Their plates are not so rusty (silver rarely turns to black) but I would like to clean them even more. |
| gzimmer | Posted - 27 November 2012 21:39 Lots of articles on google showing how to clean silver plating using baking soda and aluminum foil ... But I would buy a bottle of one of the propriety silver cleaning solutions... ........... Zim |
| neazoi | Posted - 28 November 2012 2:46 I have one of these silver cleaning liquids. They do a good job. But after a month or so, the solver plating becomes worst than it was before, much worst. They don't seem to do a good job for once-and-forever cleaning. SV3ORA |
| Garry Nichols | Posted - 28 November 2012 6:31 Does the blackish silver oxide have to be cleaned off? I thought that it was not a problem. Garry |
| gzimmer | Posted - 28 November 2012 8:33 Neazoi, Congratulations on your fascinating SV3ORA web site. http://www.neazoi.com/ It is the most interesting site have seen in a long time. Your home-made LEDs are wonderful. Thanks ..... Zim ........ VK3GJZ
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| gzimmer | Posted - 28 November 2012 8:42 Gary, Yes, I had thought that the Silver tarnish (Silver Sulphide?) was a good insulator and dielectric in the same way that Aluminum Oxide was. Could be wrong though. ........ Zim |
| neazoi | Posted - 28 November 2012 16:46 I think that the silver that becomes yellow is superconducting. But when it becomes black this is heavy oxidation. |
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