As I said, stay below the rated power and they should work fine. When
they go, they don't go gradually, though. They really are simply fuses
on a heat sink.
As far as their RF characteristics is concerned, no argument from me.
73,
Dave AB7E
Ian White GM3SEK wrote:
> David Gilbert wrot
David Gilbert wrote:
>juergen piezo wrote:
>> A 2nd option could also be a dummy load using one of those very cheap
>>RF film resistors. This would have to be mounted onto the case for a
>>heatsink.
>>
>> John
>
>Metal film resistors are notoriously fragile. They will typically meet
>their publi
Putting several in parallel on a suitable outboard heatsink is not expensive
and, properly rated, will cater for any load. As with semiconductors, the
trick is to not exceed the "junction" temperature. As always, follow the
manufacturer's recommendations then add your own fiddle factor. MIL 2
Dave,
I can vouch for that statement. I do use the Caddock Thick Film 50 ohm
resistors as precision dummy loads. They are flat up to 500 MHz with
good mounting using no leads. They MUST be mounted on a heat sink, and
yes, they will go open in a flash if the rated power is exceeded (don't
bo
Metal film resistors are notoriously fragile. They will typically meet
their published dissipation specs just fine, but they go from being OK
to being an open in a flash (literally) when overstressed. I personally
would never use one in any application where the power they were
expected to h
mounted onto the case for a heatsink.
John
--- On Sat, 10/31/09, Hector Padron wrote:
> From: Hector Padron
> Subject: Re: [Elecraft] K3 - CQWW SSB Observations - R U kidding?
> To: elecraft@mailman.qth.net
> Date: Saturday, October 31, 2009, 2:34 PM
> Thst's a great
ave enever used the tuner.
AD4C
"For a refined ham it is compulsory to own a k3"
--- On Sat, 10/31/09, John wrote:
From: John
Subject: Re: [Elecraft] K3 - CQWW SSB Observations - R U kidding?
To: elecraft@mailman.qth.net
Date: Saturday, October 31, 2009, 3:22 PM
At 05:45 AM
At 05:45 AM 31/10/09, you wrote:
>. For example, I have resonant
>antennas, so no Antenna tuner here.
>
>de Doug KR2Q
Hi Doug,
I did opt for the tuner here, even though my antennas are resonant. I
did so to have the ant1/2 option. I made a (wish list) suggestion to
Elecraft for a module, to re
On Sat, Oct 31, 2009 at 7:11 AM, David Y. wrote:
> It reminds me of the
> domination that Collins seemed to have in the 60's. Not everyone had one,
> but most people wanted one!
> Dave W7AQK
>
Dave:
But the big difference is that while most everybody wanted Collins,
very few could afford one.
ne! I'm kind of enjoying being envied!
Dave W7AQK
- Original Message -
From: "Bob Maser"
To: ; "DOUGLAS ZWIEBEL"
Sent: Thursday, October 29, 2009 12:06 PM
Subject: Re: [Elecraft] K3 - CQWW SSB Observations - R U kidding?
> Doug, I was very happy to re
Hector wrote...
> This K3 is not only not complicated to operate ...
< snip >
The "complicated" bad rap is almost surely the result of people watching this
reflector. Things like:
"Firmware beta version 5.555.001 allows the setting of macros to turn on your
coffeemaker at a user-programmed
Julius Fazekas n2wn wrote:
>
> Watch what the topbanders are using... you'll see many K3s... same for
> DXpeditions.
>
A most welcome change from all those clicking Yaesu rigs. Also from the
Flex 5000's +/-2.4 kHz spurs (~ 58 dB down on 160 which will cover even
strong DX signals like DF2PY,
S!
You forgot varying the filter width ;o)
Just received two certificates from CQ160, second place US SO-LP (10th
World) on CW (damn you ice storms! Congrats to WA1Z!) and 5th in the US SOLP
SSB (shoulda put the time in)
Both with K3s, not to mention 1st SOLP in ARRL160. K2 managed to get m
ow to operate a K3 then he will not be able
to operate any other modern radio,73
AD4C
"For a refined ham it is compulsory to own a k3"
--- On Thu, 10/29/09, ab2tc wrote:
From: ab2tc
Subject: Re: [Elecraft] K3 - CQWW SSB Observations - R U kidding?
To: elecraft@mailman.qth.net
Doug,
Did you have to let the secret out? Rats! Lets try to keep this quiet...ok?
Lee - K0WA
In our day and age it seems that Common Sense is in short supply. If you don't
have any Common Sense - get some Common Sense and use it. If you can't find
any Common Sense, ask for help from someb
Hello,
I also found Doug's posting refreshing. Reading the posts on the reflector,
it's very easy to get the impression that the K3 is complex and
intidimidating to operate. Nothing could be farther from the truth. I
upgraded from the simple, "entry level" IC-718 and find that I operate the
K3 pr
the K3 is complicated at all.
Bob W6TR Fort Collins, CO
- Original Message -
From: "DOUGLAS ZWIEBEL"
To: "Elecraft Reflector"
Sent: Thursday, October 29, 2009 11:46 AM
Subject: [Elecraft] K3 - CQWW SSB Observations - R U kidding?
> The K3 is as simple or complex as yo
The K3 is as simple or complex as you want to make it. I have a pair
of K3s (and still a K2) and I contest 99% of the time I'm on the
radio. Honestly, I hardly ever touch anything other than the tuning
knob. I think many folks using "other" radios NEED to play with the
knobs because of the inher
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