Audyn True copper caps.

[Speedskater]

Do you have a capacitance meter?
If so, wrap some foil around the cap. Measure the capacitance from the foil to each lead. The lead with the higher value is the outer one.

 

[DF96]

Will there be a noticeable difference? In one case you are measuring a small cap. In the other case you are measuring a small cap in series with a much bigger cap. The difference could be smaller than measurement repeatability.

One method is to put the cap across the input to an amp. Grab the cap to get some hum. Reverse the cap and repeat. The one with least hum means the outer is grounded. If the cap is high enough in value then you won't see much difference, but then it doesn't matter which way round you wire it in the circuit.

 

[oncle_tom]

I can't hear any difference.

P.

 

[Shertzy]

Thanks guys, i will try both ways round and see what happens, perhaps it will open a parallel universe, perhaps there will be no difference : )