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The original Eimac spec sheet for the 3CX800A7 showed under "Maximum =
Ratings" a figure of .6 amps plate current. Under typical ratings Class =
AB2 PEP conditions .... 800 ma plate current for short time duty cycle =
... under 50 %".=20
Terry W6RU
----- Original Message -----=20
From: K7xq@aol.com=20
To: amps@contesting.com=20
Sent: Monday, September 03, 2001 3:39 PM
Subject: [AMPS] Another Tube Max Plate Current Question
Hello All,=20
I have another question.=20
This time about the 3CX800A7 Tube. What is the maximum allowable Plate =
Current of a 3CX800A7 Tube ?? Can it be operated at 600 ma without=20
degradation or damage ??? The reason for asking is because my notes =
show=20
typical plate current at 500 ma. I notice hat I can further the output =
(another 100 - 125 watts) by going to abt 600 ma but worry about tube=20
degradation / distortion / or signal purity when running close to tube =
saturation.=20
Jeff K7XQ=20
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<DIV><FONT face=3DArial size=3D2>The original Eimac spec sheet for the =
3CX800A7=20
showed under "Maximum Ratings" a figure of .6 amps plate current. Under =
typical=20
ratings Class AB2 PEP conditions .... 800 ma plate current for short =
time duty=20
cycle ... under 50 %". </FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>Terry W6RU</FONT></DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>----- Original Message ----- </DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: =
0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
<DIV=20
style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
<A href=3D"mailto:K7xq@aol.com"; title=3DK7xq@aol.com>K7xq@aol.com</A> =
</DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
href=3D"mailto:amps@contesting.com"=20
title=3Damps@contesting.com>amps@contesting.com</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Monday, September 03, =
2001 3:39=20
PM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> [AMPS] Another Tube =
Max Plate=20
Current Question</DIV>
<DIV><BR></DIV><FONT face=3Darial,helvetica><FONT size=3D2>Hello All, =
<BR>I have=20
another question. <BR><BR>This time about the 3CX800A7 Tube. What is =
the=20
maximum allowable Plate <BR>Current of a 3CX800A7 Tube ?? Can it be =
operated=20
at 600 ma without <BR>degradation or damage ??? The reason for asking =
is=20
because my notes show <BR>typical plate current at 500 ma. I notice =
hat I can=20
further the output <BR>(another 100 - 125 watts) by going to abt 600 =
ma but=20
worry about tube <BR>degradation / distortion / or signal purity when =
running=20
close to tube <BR>saturation. <BR><BR>Jeff K7XQ=20
<BR><BR></BLOCKQUOTE></FONT></FONT></BODY></HTML>
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