So about 20 minutes prior to starting another successful Field Day with my
trusty K3 I powered it up for the first time after connecting everything had
just started some tests when my buddy starting yelling that I was letting
some of the magic smoke out of the radio. Sure enough, there was smoke
co
Hi Mike,
Probably just smoked T4, the voltage sampling transformer in the SWR
bridge. That's probably a simple repair.
73,
Bob, N6CM
On Sun, Jun 29, 2014 at 8:23 PM, Mike Lewis wrote:
> So about 20 minutes prior to starting another successful Field Day with my
> trusty K3 I powered it up for
Mike,
I am sorry to hear that you had such an incident.Unfortunately, you
may not be alone in your woes. Such events are not uncommon among Field
Day reports.
The basic K3 is protected by a series reverse protection diode, and
should be OK. Unfortunately, there is not such protection f
Anderson Power Poles on the antenna jack?
On 6/29/2014 11:19 PM, Don Wilhelm wrote:
'Closing the barn door after the horse is gone' is not really helpful,
but I would advocate the use of Anderson Power Pole connectors with
fuses right at the power supply end of the power cord as prevention
I am thinking Don did not catch the use of a "bias Tee" type DC injector
in the story...
JHR ===
On 6/30/2014 1:36 AM, Michael Eberle wrote:
Anderson Power Poles on the antenna jack?
-
-
Evangelists often do not read the fine print...
Scott, N9AA
On 6/30/14, 1:55 AM, K8JHR wrote:
I am thinking Don did not catch the use of a "bias Tee" type DC
injector in the story...
JHR ===
On 6/30/2014 1:36 AM, Michael Eberle wrote:
Anderson Power
I really was thinking of the main power connectors, but brain was sleep
deprived after Field Day - However:
On the power source to the Bias Tee - of course!
If the bias tee was installed backwards in-line with the antenna, I
would suggest that some thought be given to the gender of the connecto
I did a similar thing with my TS-850. It smoked a lot of relays in the antenna
tuner. I had them replaced, but have not powered it up since It was returned.
Willis 'Cookie' Cooke, TDXS DX Chairman
K5EWJ & Trustee N5BPS, USS Cavalla, USS Stewart
On Sunday, June 29, 2014 10:24 PM, Mike Lewis
So brought the K3 in to work this morning to our lab area where we have
static benches, blowers, wrist straps etc. and opened it up. Sure enough,
the T4 transformer was pretty crispy looking. My boss who is also an avid
ham (dream job setup :) ) then sprang into action. He removed the
transformer,
On Mon, Jun 30, 2014 at 9:40 PM, Mike Lewis wrote:
> My boss... then sprang into action. He removed the
> transformer, counted the turns, removed the old wire, found some new
> magnet wire.
>
==
Mike, you have the right job, or at least the right boss!
Tony KT0NY
I'd suggest to replace the toroid core, as the high temperatures to which it
was subjected may have altered the characteristics of the material.
73,
Matt VK2RQ
> On 1 Jul 2014, at 12:40 pm, "Mike Lewis" wrote:
>
> So brought the K3 in to work this morning to our lab area where we have
> static
On 6/30/2014 7:56 PM, Matt VK2RQ wrote:
I'd suggest to replace the toroid core, as the high temperatures to which it
was subjected may have altered the characteristics of the material.
Ferrite materials have to get pretty hot for that to happen. My guess is
that the thermal mass might be larg
Congrats Mike,
Bob, N6CM
On Mon, Jun 30, 2014 at 8:55 PM, Jim Brown
wrote:
> On 6/30/2014 7:56 PM, Matt VK2RQ wrote:
>
>> I'd suggest to replace the toroid core, as the high temperatures to which
>> it was subjected may have altered the characteristics of the material.
>>
>
> Ferrite materials
On Mon, 30 Jun 2014 20:40:45 -0600, Mike Lewis wrote:
> He removed the
> transformer, counted the turns, removed the old wire, found some new magnet
> wire of the proper gauge, rewound the toroid, and replaced both it and the
> straight through portion (which had gotten pretty hot from the proximi
14 matches
Mail list logo