[sdiy] box of tubes - mercury revisited

[ASSI]

On Freitag, 28. April 2006 19:34, Harry Bissell Jr wrote:
> Mecury ~is~ the "getter"... it is used to
> absorb the last of the oxygen that may be in the tube,
> rendewring it inert.

More common is Magnesium together with traces of rare-earth metals. If 
you've ever wondered about that seemingly useless metal ring in the top 
of your tube: this is where the getter pill is placed before the tube 
sealing process starts. After the tube is pumped down and sealed (this 
is where the pointy end comes from), the top of the tube is still 
red-hot. The tube is then held upside-down, the getter pill falls into 
the top and melts and the tube is carefully turned to distribute the 
molten metal evenly. This gives the nice "mirror" top of the tube. 


Achim.
-- 
+<[Q+ Matrix-12 WAVE#46 Neuron microQkb Andromeda XTk sonic heaven]>+

SD adaptations for Waldorf Q V3.00R3 and Q+ V3.54R2:
http://Stromeko.Synth.net/Downloads.html#WaldorfSDada