Let's put to bed the idea that mismatched loads should not be an issue. I have
2 Palstar tuners, an AT5K and a BT1500A. Great high quality products.
Mismatched loads "should not" be an issue. However, switching to the wrong
antenna, having a tuner set for a wrong band, a break in an antenna wire have
all happened over the past few years. Operator error should be assumed to
happen at least once in a lifetime. That's all it takes to wipe the finals out
of one of my Omni VI+'s. I have 2 962 and 1 961 PS's. In every case to date of
a cockpit error (like having the power turned up when tuning, rather than at 10
watts where I "thought" it was), the power supply shut down. I had to turn PS
and rig off and on to get back on the air. Somehow that seems like a better
alternative than replacing finals and retuning or realigning. It also allows me
some arrogance in setting up a new antenna.
Just my thoughts on the issue.
Dave
WA3F
----- Original Message -----
From: "Roger Rippy" <svtincup@yahoo.com>
To: TenTec@contesting.com
Sent: Sunday, November 21, 2010 8:43:02 AM
Subject: [TenTec] Power Suppy for Omni 6 & tuners
At the beginning of this month, I had asked the list
about tuners and the feedback was extremely helpful.
I have been operating for the past several weeks with
my new LDG Pro 200 and I am very pleased with my decision.
The tuner works well with both my Omni 6 and Triton rigs,
and it certainly has increased the ease of operation.
I understand that the older TT rigs were not built
with current protection for mismatched loads and I
do have TT power supplies. My question is in response
to Jim Brown's point about using any power supply. If
you think or know that mismathed loads should not be
an issue, then what is the level of risk using a linear power
supply? I am not familiar with either an "Airpax" or an
after market magnetic circuit breaker; but I will do
the reasearch since I may need to use a non-TT power
supply at some future date. I am under the impression
that TT can rebuild a 961 or 962 power supply but the
cost may be significant; therefore the linear supply
option.
Roger Rippy W7RIP Bozeman, Montana
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