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Author Topic: I built an Elecraft K2!  (Read 8683 times)
KA5N
Member

Posts: 4380




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« Reply #15 on: September 20, 2012, 09:49:14 AM »

Compare a 100 watt K2 with KSB2 and KDSP2 and 160 meter option against your fancy bells and whistles rig and you'll begin to wonder what those bells and whistles do anyway!   Also you will still have a couple of thousand dollars you didn't spend.
While the K2 is known for its CW performance, it does a great job on SSB as well.
Drives amplifiers with no problem.  Easy to operate. 
"A thing of beauty is a joy forever."

Allen KA5N
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AD6KA
Member

Posts: 2232




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« Reply #16 on: October 29, 2012, 01:46:28 PM »

Quote
What threw me off also is that the K1 has actually better audio "oomph" than the K2, so the signal sounded more powerful, or fuller.

I wanted more audio out of my K2 also.
The speaker audio is fine, but not the headphones.
Since I use headphones %99 of the time, I changed
the values of those two resistors that are behind the
headphone jack. Sorry, can't remember their numbers
or the value I changed them to at the moment.
Elecraft Tech Support can help you there, they
gave me the info.

And just for grins I tried the Receive Preamp Mod
listed at their web site. (Or at least it used to be).
Just change the resistor R76 associated with the
2N5109 transistor on the bottom of the main board.
I changed it from the stock 10 ohms to 6.8 ohms,
using a %2 tolerance resistor. It gives the preamp
a bit more gain and I noticed no negative changes
in selectivity. The preamp was working fine, I just
wanted to try out the mod and liked it.  Grin

Good luck and have fun with your K2.
It really is an amazing rig.....and you can fix it yourself!
73, Ken  AD6KA
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GILGSN
Member

Posts: 199




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« Reply #17 on: October 29, 2012, 04:57:03 PM »

Quote
Just change the resistor R76 associated with the
2N5109 transistor on the bottom of the main board.
I changed it from the stock 10 ohms to 6.8 ohms

Thanks, I might try that mod!

Gil.
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