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Re: [Amps] Alpha 78

To: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Subject: Re: [Amps] Alpha 78
From: "Jerry Kaidor" <jerry@tr2.com>
Reply-to: jerry@tr2.com
Date: Sun, 26 Aug 2012 10:22:35 -0700 (PDT)
List-post: <amps@contesting.com">mailto:amps@contesting.com>
I run my '78 (with the original tubes) on RTTY at about 500W.   Even at
that level, the air coming out of the chimney holes gets fairly warm.   I
haven't measured it yet.

  One of the main reasons I got it was that I judged my existing linear (
30L-1 ) incapable of doing RTTY at any power level whatsoever.   And I
had broken an SBE SB2-LA ( one shorted grid ) on RTTY.

   I suspect that contesting is actually easier on the equipment than
ragchewing, because the exchanges are so short.

                                - Jerry Kaidor, KF6VB


> On 8/25/2012 4:06 PM, Carol Richards wrote:
>> I am using an alpha 78 with a pair of 3cx800A's  instead of the hard to
>> get and afford  8874's.  I get about 1200w output on cw.  Not bad since
>> the power supply only provides 2000V  and I am only able to drive it
>> with 100w..   My question is   when I operate RTTY is it still safe

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