[sdiy] box of tubes - mercury revisited

[René Schmitz]

Anthony Bisset wrote:
> so this means nearly all tubes have some amount of mercury in them?
> -a

Traces, maybe.

Unless they are mercury vapor rectifiers or mercury vapor thyratrons, in 
which case the mercury is very often visible as small drops on the glass.

To make sure check the datasheets for the tubes in question.

Cheers,
  René

-- 
uzs159 at uni-bonn.de
http://www.uni-bonn.de/~uzs159