02-08-2013, 10:52 AM
Nothing sacred about electrolytics in power supply filtering.
Back in the days, larger value capacitors (condensers) were not practical to make, until the electrolyte technology matured a bit to have a large capacitance value in a reasonable form factor, as opposed to gigantic wax-paper caps to get same capacitance. Electrolytic chemistry is polarized and one must adhere to the (+) and (-) for the chemistry to work correctly. Today's non-polar metal-film types will work the same without special hookups.
...and now back to your regularly scheduled program...
Chuck
Back in the days, larger value capacitors (condensers) were not practical to make, until the electrolyte technology matured a bit to have a large capacitance value in a reasonable form factor, as opposed to gigantic wax-paper caps to get same capacitance. Electrolytic chemistry is polarized and one must adhere to the (+) and (-) for the chemistry to work correctly. Today's non-polar metal-film types will work the same without special hookups.
...and now back to your regularly scheduled program...
Chuck
Chuck Schwark,
The Philco Repair Bench
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