I've seen the blue glow through (or in?) the ceramic of 4CX250s,
8122s, 8874s, etc. Look in a dark room...-WB2WIK/6
> Anybody seeing these "Auroras" should change their
> tubes to ceramic - provided that the power meter does not show blue glow!
>
> 73, Kari OH5XT
>
> _____________Alkuperäinen viesti ____________
> Aihe: Re: [Amps] tube flatulence - gettering
> Lähettäjä: <G3rzp@aol.com>
> Päivämäärä: Fri, 19 Nov 2004 20:44:43 +0200
>
> I've usually founds that a blue glow inside the envelope isn't a problem -
>
> it's some sort of flourescence. Some brands of 807s seemed to do it more
> than
> others.
>
> 73
>
> Peter G3RZP
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