I am rather unfamiliar with tube-based amplifiers, so therefore some questions:
Wonder if anyone has some in field experience in using the Alpin 100 amplifier
in a CW contest, like CQWW.
How about cooling and advised maximum output power during an CW contest? (to
keep it simpel: key down ... Watt?)
Alpin itself claims an maximum output of 1100Watt, but that's with their for
this amplifier choosen tubes.
I saw reports of people changing the original tube for a GU74b somewhere from
the shelf, which delivered 200Watt less...
(around 900Watt or so)
So, I guess the original tube will alter, and so the maximum power will slowly
How about this.....how long will the GU74b capable of delivering the high
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