This just won't die. How does polarity matter in A.C.? Without a chassis ground in a crossover network, why would it matter? Do you live across the river from XERF?
That video is legitimate. Watch it. It has to do with keeping the outside foil towards ground or the lowest impedance of the two nodes being coupled. This was fairly standard in the golden tube era. Most of those nasty paper wax capacitors has the outside foil lead identified. With lower impedance solid state circuits it doesn't really matter so new capacitors are often unmarked. But with Mr. Carlsons test jig, you can still determine the outside foil lead. And yes in some circuits it makes absolutely no difference.
Mr Carlsons lab is a good channel. You can learn a lot there.
I think the construction and wiring job is outstanding. And you did the wiring quite right. Your signal leads are short and distanced to minimize and crosstalk. But your DC power and DC control signals are neatly bundled as these have no crosstalk issues.
Are Your Capacitors Installed Backwards ??
in Technical/Restorations
Posted
That video is legitimate. Watch it. It has to do with keeping the outside foil towards ground or the lowest impedance of the two nodes being coupled. This was fairly standard in the golden tube era. Most of those nasty paper wax capacitors has the outside foil lead identified. With lower impedance solid state circuits it doesn't really matter so new capacitors are often unmarked. But with Mr. Carlsons test jig, you can still determine the outside foil lead. And yes in some circuits it makes absolutely no difference.
Mr Carlsons lab is a good channel. You can learn a lot there.