[NJARC] Oh no not the eye

John Ruccolo jr6v6gt at yahoo.com
Tue Oct 14 22:23:28 EDT 2008


Hi Marty,

I guess you're right.

I remember many years ago an article in ARC about rejuvenating eye tubes -- but I've heard several times since that it's bunk. Never tried it.

JR


--- On Tue, 10/14/08, Marty Friedman <radiomf at comcast.net> wrote:

> From: Marty Friedman <radiomf at comcast.net>
> Subject: Re: [NJARC] Oh no not the eye
> To: "New Jersey Antique Radio Club" <njarc at mailman.qth.net>
> Date: Tuesday, October 14, 2008, 9:57 PM
> Visit our web site - See http://www.njarc.org
> _______________________________________________
> John et all,
> Eye tubes rarely have emission faults. Increasing filiment
> voltage does not 
> brighten them. The fault is with the phosphors.Some
> brightening can be 
> accomplished by increasing the target ( phosphor plate)
> voltage. Once they 
> get so dim that the orange glow from the heater is brighter
> than the green 
> on the target, use them for target practice.
>  
> 
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> NJARC at mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/njarc


      


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