Hello all. I was referred to this list by Glenn, AE0Q, for an answer to my
question about Alpha 99 exhaust temperatures. I am seeing about 155 to 160
degrees F when running RTTY with 4.5 second transmissions at 500 watts. It
doesn't really seem all that high to me but I would like to make sure I am not
cooking the tubes. Has anyone here looked at exhaust temps and determined what
a safe temperature range is? I am using an NIST traceable thermometer about ½
inch above the vents in the case, so the temps are pretty accurate.
Thanks and 73
Warren / NI5L
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