I have an early K2 that has the original type crystals in both the CW and
SSB IF filters (marked with ECS 4.91-20). If I am not going to increase the
bandwidth of the SSB filter, is there any reason to replace the old
crystals with the new units from Elecraft? Will the new crystals improve
e Control Board can be mounted as
> indicated in the Keying Waveshape Mod documentation. If you do not have
> that document, send me an off-list email and I can send it to you.
>
> I have been installing that mod on all the K2s that I upgrade.
>
> 73,
> Don W3FPR
>
>
> O
I'd like to update my K2 (SN 336) with the keying mod to reduce CW
bandwidth. The doc from Elecraft specifies a PIN diode that is obsolete and
no longer available (5082-3081).
I'm not sure what specifications are important to spec a replacement part.
Any suggestions for a suitable replacement, or
in 5 - it should be 4 volts or 1/2 the 8 volt
> supply. If not, check the Thermistor board for solder bridges. You can
> see the back of the Thermistor board if you remove the Control Board and
> Front Panel.
>
> 73,
> Don W3FPR
>
>
>
>
> On 10/15/2017 10:02 PM, M
Since fixing my BFO range issue I started going through a full alignment. I
roughly set the BFO for all the filters. I noticed my frequency display was
off about 1500 Hz, so I re-set the 4MHz oscillator, then tried to run CAL
PLL. The CAL PLL started, but never finished. It just sat right around
gular mail on a Sunday. Just more
of that Elecraft Mojo.
And, of course, my tiny little order was treated with the same urgency and
respect as when I bought the radio new. What a great company.
Now, off to finish the alignment!
Thanks again and 73
Mike M.
KU4QO
On Sat, Sep 30, 2017 at 10:5
contact
> Elecraft Support and request a pair of BFO crystals and a new L33 and 5.1
> meg resistor to replace them.
>
> 73,
> Don W3FPR
>
> On 9/30/2017 5:40 PM, Mike Maiorana wrote:
>
>> Thanks Don.
>> I triple-checked the inductor wires and they are well solde
> frequency display. In other words, simply adjusting the 4 MHz Reference
> does nothing for normal operation.
>
> 73,
> Don W3FPR
>
>
> On 9/30/2017 9:35 AM, Mike Maiorana wrote:
>
>> Hello all. I have a K2, 6000+ serial number, that I'm trying to get
>> work
Hello all. I have a K2, 6000+ serial number, that I'm trying to get working
correctly. Unknown history. A quick test showed the filters were not
properly adjusted (could hear both sidebands of carrier on some bands). I
thought it would be best to do a top-down alignment.
I adjusted the 4 MHz
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