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[Amps] TL-922 500W only

To: "Amps Amps" <>
Subject: [Amps] TL-922 500W only
From: "Alex Malyava" <>
Date: Fri, 22 Feb 2008 10:55:58 -0500
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Hi guys,
I think I have a problem with my TL-922 amp.
It gives only 500W out with approximately 50W in.
Grid current, or whatever that meter measures (like voltage between
cathode and ground) shows about 200mA - max "current" permitted by
Output power slightly goes up to 550W when I increase the drive all
the way from 50W up to a 100W and grid current goes up to 300-350mA.

What could be a problem?
The only thing I suspect - is that the amp gives half of the power, so
it might be "one tube is dead" case. I will try those tubes one by one
tonight to check how much output each individual tube can produce.

A few more questions:
Why their manual says that I shall not operate CW in SSB mode? What
stand behind that prohibition?
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