[Amps] Which 3-500Z

[Steve Katz]

When I had a 2KD5 many years ago, even its filament voltage was too high
with the normal 240V operating primary tap.  What were they thinking?  (It
was probably just about right for operating in VK with 265V line voltage...)
-WB2WIK/6

"If everything seems under control, you're just not going fast enough." -
Mario Andretti

> -----Original Message-----
> From:	2 [SMTP:2@vc.net]
> Sent:	Wednesday, August 28, 2002 10:23 AM
> To:	Randall DuCharme;  AMPS
> Subject:	Re: [Amps] Which 3-500Z
> 
> 
> 
> >Greetings amps enthusiasts,
> >
> >I've had precious little time to devote to my 4 x 813
> >project this summer, so it looks like another fall and
> >winter with my Henry 1KD5.  It's got an Eimac bottle
> >in it that suffers now from low output, undoubtedly
> >due to excessive filament voltage. 
> 
> RR.  Another problem is the bleeder resistors produce too much heat for 
> the electrolytics.  Changing from 25-kohmequalizers to c. 100kohm would 
> help.
> 
> > I'll probably
> >purchase another tube, correct the filament voltage
> >problem, and use it a while longer but am interested
> >in "field reports" of the various ones currently
> >available.  Are the Amperex tubes worth the extra
> >$$$???  Taylor??? Star??? Eimac NOS (yikes!)????
> 
> I still get full suds from an Amperex bottle that was made in 1967.  
> Chinese tubes are currently good.  Triton [was Eimac] tubes reportedly 
> have weak (but beautiful)*  anode-cooler spotwelds that fail with normal 
> heating/cooling cycles.  Eimac tubes made in Salt Lake had the same 
> problem - while those made in San Bruno did not.    
> * Note - beautiful looking spotwelds are like unto beautiful women.  
> >
> >Suggestions please.
> >
> >Kind regards
> >
> >=====
> >Microsoft is not the answer.
> >Microsoft is the question.... and the answer is NO!
> >
> >Randy  (AD5GB)
> >
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> >
> 
> 
> -  R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K, 
> www.vcnet.com/measures.  
> end
> 
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