rec.arts.theatre.stagecraft

Phil Allison wrote:
> "VWWall"
>> That was probably not a paper cap, but an electrolytic, with considerable
>> voltage across it. When they blew, the remains looked like a chicken had
>> been plucked and the feathers left behind!
>>
>> They still blow, but most are now in aluminium cans, not a cardboard tube
>> like the older ones.
>>
>
> ** Nonsense.
>
> Electro caps were then and still are now all fitted into aluminium cans,
> then sealed at the top with a rubber gasket to prevent loss of the volatile
> electrolyte. The can was connected to the negative terminal of the
> capacitor and a wire lead welded to the closed end.
>
> 1950s and early 1960 examples were typically covered in cardboard tubes -
> usually reddish brown in colour.

I have in my hands a red, yellow, and blue one. The can is much thinner
than the recent electrolytics which use the can as a mount. Hence they
created much more mess when they blew. The cardboard tube contributed
to the mess.
>
> Later examples were fitted into plastic sleeves - could be nearly any
> colour.
>
>
>
> ...... Phil

The accepted sig for ng's is: (2 dashes, space, line return)

--
VWWll