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I have at long last obtained my first serious amplifier. It is an =
Ameritron AL-80A which I find vastly more desirable than the current =
AL-80B. The later being housed in the thin (cheap) and easily warped =
aluminum not unlike the usual stuff of which most MFJ products are =
encased. The AL-80A is a product of the original company owned by Prime =
Instruments. It is of all steel construction, loads up smoothly, works =
well on the WARC bands and seems to still have the original Eimac tube.
I will accept everyone's congratulations in advance to save time and get =
to my questions which are essentially, in a nutshell, what are the best =
operating parameters to observe when running the classic single 3-500Z =
amp? The manual indicates the following:
1. Max drive of 100 Watts
2. Max plate current of 550 ma
3. Max grid current of 200 ma
4. Max power out of 1000 watts
It seems to me I recall some discussion about these values, but don't =
recall the conclusion. I would appreciate any advice regarding proper =
operation of 3-500Z amplifiers.
thanks, Doug -- W4DXV
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<DIV><FONT size=3D2>
<DIV><FONT size=3D2>I have at long last obtained my first serious =
amplifier. =20
It is an Ameritron AL-80A which I find vastly more desirable than the =
current=20
AL-80B. The later being housed in the thin (cheap) and easily =
warped=20
aluminum not unlike the usual stuff of which most MFJ products are=20
encased. The AL-80A is a product of the original company owned by =
Prime=20
Instruments. It is of all steel construction, loads up smoothly, =
works=20
well on the WARC bands and seems to still have the original Eimac=20
tube.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=3D2>I will accept everyone's congratulations in advance =
to save=20
time and get to my questions which are essentially, in a nutshell, what =
are the=20
best operating parameters to observe when running the classic single =
3-500Z=20
amp? The manual indicates the following:</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=3D2>1. Max drive of 100 Watts</FONT></DIV>
<DIV><FONT size=3D2>2. Max plate current of 550 ma</FONT></DIV>
<DIV><FONT size=3D2>3. Max grid current of 200 ma</FONT></DIV>
<DIV><FONT size=3D2>4. Max power out of 1000 watts</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=3D2>It seems to me I recall some discussion about these =
values,=20
but don't recall the conclusion. I would appreciate any advice =
regarding=20
proper operation of 3-500Z amplifiers.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=3D2>thanks, Doug -- =
W4DXV</FONT></DIV></FONT></DIV></BODY></HTML>
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