Per the RKR website, RKR sold Alpha to "Alpha RF Systems" which I
understand is owned by Dishtronix. Recall that Dishtronix purchased
Ten-Tec several months ago. Alpha RF Systems new website was up
yesterday, but appears to be down today:
www.alpharfsystems.com
73, Mike W4EF.................
On 10/5/2016 1:54 PM, Dick Green WC1M wrote:
It would be worth a discussion with the RKR techs about which 87A parts can
no longer be supplied. The results of that conversion would heavily
influence how much I'd be willing to pay for a used 87A.
73, Dick WC1M
-----Original Message-----
From: john@kk9a.com [mailto:john@kk9a.com]
Sent: Wednesday, October 5, 2016 9:15 AM
To: cq-contest@contesting.com
Subject: Re: [CQ-Contest] Alpha 87A Alpha Max
Alpha 87A's are pretty inexpensive now. I am not sure how it works without
Alpha Max, I owned one with Alpha Max and it tuned very nicely. My comment
regarding this amp is that they are very expensive to repair if you send it
back to the manufacture so be cautious what you purchase.
John KK9A
To: cq-contest <cq-contest@contesting.com>
Subject: [CQ-Contest] Alpha 87A Alpha Max
From: Jim Brown <k9yc@audiosystemsgroup.com>
Reply-to: k9yc@arrl.net
Date: Tue, 4 Oct 2016 13:47:09 -0700
Guys,
I'm about to buy an Alpha 87A, early production, without the Alpha Max
Firmware. That's the feature that provides auto tuning (as opposed to auto
recall of saved settings, which was how the amp was originally built).
Some questions.
1) How useful is the Alpha Max auto-tune feature?
2) The new owner of Alpha says the upgrade kit is no longer available. Is
there an easy way to add it? That is, are the chips generic? I'm guessing
that at least one of the two chips is an EPROM. Is it practical to buy the
chips and copy the firmware from another 87A?
3) Is it worth going to the trouble? I would use it for my high dipoles for
80 and 40M.
Thanks and 73, Jim K9YC
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