Bill said: .....I don't know why. With just a little bit of searching, I
found a
3-500Z spec sheet that clearly shows constant current curves going as
high as 2.2 amps! (Here:<http://www.mif.pg.gda.pl/homepages/frank/
sheets/088/3/3-500Z.pdf>)
So much for the claim that the 3-500Z can't pass more than 420 mA....
I call your attention to that same link where it refers to 'RF Linear
Amplifier Grounded Grid, Class B'. It clearly states: Maximum Ratings
DC Plate Voltage........ 4000 Volts
DC Plate Current........ 0.400 Amp
Plate Dissipation........ 500 Watts
Grid Dissipation........ 20 Watts
I think someone ought to recant their statements with regards to what the
manufacturer's maximum rating specifications.
Mod-U-Lator,
Mike(y)
W3SLK
----- Original Message -----
From: "Bill Coleman" <aa4lr@arrl.net>
To: "Tom W8JI" <w8ji@w8ji.com>
Cc: <amps@contesting.com>
Sent: Monday, June 26, 2006 8:53 PM
Subject: Re: [Amps] IM distortion and such
On Jun 26, 2006, at 6:03 AM, Tom W8JI wrote:
> The original subject was the manual of the AL80 says to load
> to 550mA and then as a final step back off drive to obtain
> 400mA. This ensures the loading is heavy enough and grid
> current is proper to handle ALC overshoots common with
> exciters. That horrified a couple people, ...
I don't know why. With just a little bit of searching, I found a
3-500Z spec sheet that clearly shows constant current curves going as
high as 2.2 amps! (Here:<http://www.mif.pg.gda.pl/homepages/frank/
sheets/088/3/3-500Z.pdf>)
So much for the claim that the 3-500Z can't pass more than 420 mA....
Besides, if it offends people, they can just tune their amps some
other way.
I don't see what the big deal is.
Bill Coleman, AA4LR, PP-ASEL Mail: aa4lr@arrl.net
Quote: "Not within a thousand years will man ever fly!"
-- Wilbur Wright, 1901
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