[ICOM] Oh NO!!!!

[Joe Perge]

Icom makes some of the best receivers but their protection for finals,
drivers, predrivers is not very hearty. I also have an early version 746pro
and it had to be fixed for the same problem. There has been a debate as to
whether ESD causes the problems. Icom says it is. Mine died after a cold
start-up after not being connected to power and antennas. I wish they were
built like the 751A.
Joe, WB8HWF

-----Original Message-----
From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net] On
Behalf Of Mike Olbrisch
Sent: Wednesday, April 25, 2012 12:21 PM
To: 'ICOM Reflector'
Subject: Re: [ICOM] Oh NO!!!!

Really?  I wonder if this is what got my IC-703+ ???  

One evening it was working fine when I shut it off.  The next morning, the
tuner would not function.  Testing proved it has from 1 to 2.5 watts out on
various bands.  One of the two final transistors had failed.

Vy73 - Mike - KD9KC.
El Paso, Texas - DM61rt.
W5-SOTA Association Manager.
W5-SOTA info: www.qsl.net/kd9kc/




-----Original Message-----
From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net] On
Behalf Of Joe Perge
Sent: Wednesday, April 25, 2012 10:14
To: 'ICOM Reflector'
Subject: Re: [ICOM] Oh NO!!!!

This has happened to my 703+, twice! It's time to try an Elecraft for the
first time!
Joe, WB8HWF

-----Original Message-----
From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net] On
Behalf Of Stephen Budensiek
Sent: Wednesday, April 25, 2012 12:08 PM
To: ICOM Reflector
Subject: Re: [ICOM] Oh NO!!!!

Phil,
   I can't answer for the newer rigs.  But it is there in all flavors of the
756, ie the original 756, the Pro, the Pro2, and the Pro3.
Someone commented it was also present in the 746 (I've never owned one).
Also can't tell you about the newer rigs.  I find it interesting as a
engineering tech that it avoids the finals (should be first thing in the
chain from the antenna port on the tx side, and goes to the drivers).  Not
sure how that is done. 

----
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