[Amps] 4-400G

[wlfuqu00@uky.edu]

	I think part of the misconception that carbon anode tubes are more gassy 
is because when most people look at one they associate the carbon with 
something more familiar to them. Namely charcoal. Charcoal does absorb gas 
and such and it great for filters however graphite is quite a different 
thing. Graphite unlike charcoal pacts very tight with its rather flat 
molecules.  The nice thing about carbon ( which most power tubes have in 
them anyway some where). Is that when they go to bake and pump down the 
tube any oxides that form on the graphite turn to gas and are pumped out. 
CO and CO2 are both gasses.  Any other materials (metals) will be coated 
with the oxides that form on them. Most CRT's are coated inside between the 
neck and screen with graphite. Commonly called DAG. This is a coating that 
is painted on and allowed to dry before pumping down the tube.

73
Bill wa4lav