The generated heat is a function of plate dissipation, not of the plate
material.
Certainly it takes longer for a thick anode structure to cool down.
73
Peter
-----Original Message-----
From: Amps [mailto:amps-bounces@contesting.com] On Behalf Of David Craig
Sent: Dienstag, 28. Mai 2013 17:16
To: 'Amps reflector'; 'Paul Baldock'
Subject: Re: [Amps] Different 3-500Z amplifiers
IMHO the graphite anode version puts out & maintains WAY MORE heat
than the good old moly style. Just noticed recently RF Parts has a mention
about that too.
Dave N3DB
-----Original Message-----
From: Amps [mailto:amps-bounces@contesting.com] On Behalf Of Carl
Sent: Tuesday, May 28, 2013 10:43 AM
To: 'Amps reflector'; Paul Baldock
Subject: Re: [Amps] Different 3-500Z amplifiers
Metal anodes were produced by Eimac and China.
Graphite anodes were/are produced by Eimac, Amperex, Philps, and China.
Carl
KM1H
----- Original Message -----
From: "Paul Baldock" <paul@paulbaldock.com>
To: "'Amps reflector'" <amps@contesting.com>
Sent: Monday, May 27, 2013 10:05 PM
Subject: [Amps] Different 3-500Z amplifiers
>
> I have 2 amps with 3-500Zs. The 3-500Z's have Eimac labeling. The
> anode of these has vertical fins.
>
> I just acquired another amp with 3-500Zs. These tubes have no
> lebeling and have an anode with a horizontal disks.
>
> Could somebody educate me on the operational difference if any of
> these 2 very different looking 3-500Z's?
>
> Thanks
>
> - Paul
>
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>
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