I would not risk the transistors for the negligible cost of a circuit
breaker.
Your "assumption" that with a good tuner you will not have high SWR and
therefore never draw too much current due to high swr, has one big flaw:
"Operator Error." We all make them from time to time.
Use a circuit breaker or use a Ten-Tec P.S. with this feature.
73
Rick
-----Original Message-----
From: tentec-bounces@contesting.com [mailto:tentec-bounces@contesting.com]
On Behalf Of Roger Rippy
Sent: Sunday, November 21, 2010 7:43 AM
To: TenTec@contesting.com
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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