[Amps] Customs drilled a hole in my GU74b / 4CX800s

[Mike McCarthy, W1NR]

On 03/01/2012 11:48 AM, Tobias Wellnitz wrote:
>
> *Btw: Is it true that these tubes contain Beryliumoxid and thoriated
> thungsten?
>
> What is the health risk going out from an opened tube?
> *


Beryllium oxide is not a problem if it remains a solid mass. However, 
drilling or sawing it creates dust which it incredibly toxic if inhaled.

Mike, W1NR