[Amps] Is This 4CX1600B Still Good?

[Mike]

Hello George,

Safely checked and the tube is warm after three minute warm 
up.  Earlier had measured the resistance of the tube to be ~2.3 Ohms.

At 11:50 AM 11/23/2005, gdaught6 at stanford.edu wrote:
>On 23 Nov 2005 at 10:22, Mark Hill wrote:
>
> > Mike,
> >
> > Is the heater of the 4CX glowing?
>
>How would one know?  The tube is colored ceramic.  Disconnect the
>HV!!!  Then you could turn it on for a few minutes and see if it gets
>warm.  NOTICE!!!:  Disconnect and or DISCHARGE the HV before you
>stick your hands in there!!!  WARNING WARNING Be SAFE!!
>
>73,
>George T. Daughters, K6GT
>
>
>
>
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         73,
         Mike, K4GMH