I turned on my Orion this evening after about 4 months. I felt a
little rusty using the controls. I went to tune up a linear
amplifier and first noticed that the power output was
fluctuating. Every second or two the power will decrease something
like 10-20% and bounce right up to normal. There is no regular
rhythm to it. The ALC LED is observed to go off when the power
drops. The power output is a full 100 watts. The fluctuation occurs
at any power level. It occurs in both the tune position and if key
down in the CW mode. I think it must be a new phenomenon since I
don't recall seeing it before; and it plays havoc with trying to tune
the linear amplifier (which I surely would have noticed). No
difference with the linear turned off.
The ALC LED going off with each power dip must be a good clue to what
the problem might be. But I'm "clueless". I did a master reset with
not change. I substituted another 13.8v, 30amp power supply with no change.
So, what's going on here? Is a trip back to Tentec the only option?
Many thanks,
Torrey N9PY
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