Re: [Elecraft] K1 Future Improvements to VFO D3, R17, R18 any one tried??

There is one very simple solution to greatly improve the stability of any VFO: blowing air over the equipment case. It's not obvious, but by keeping the case cool, you keep air inside the case close to ambient temperature. The stability gain can be incredible--around an order of

Re: [Elecraft] K1 Future Improvements to VFO D3, R17,R18 any one tried??

Don wrote: I would not regard 100 Hz of drift in the K1 as a design problem at all - The K1 spec is for drift less that 200 Hz after a 5 minute warmup. The fact that the K1 does not use a DDS vfo is not a 'design problem' as was stated... I wholeheartedly agree. I had been using (and still

Re: [Elecraft] K1 Future Improvements to VFO D3, R17, R18 any one tried??

Paul wrote: Just reading page 59 of the K1 manual and it talks about provisions for improvements to the VFO temperature compensation And the use of D3, R17 and R18. Anyone tried this out and done any before and after tests. I've heard no reports of such experiments in the five years that I've

RE: [Elecraft] K1 Future Improvements to VFO D3, R17, R18 any one tried??

: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mike Morrow Sent: Sunday, December 18, 2005 9:13 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K1 Future Improvements to VFO D3, R17,R18 any one tried?? Paul wrote: Just reading page 59 of the K1 manual and it talks about provisions

RE: [Elecraft] K1 Future Improvements to VFO D3, R17, R18 any one tried??

@mailman.qth.net Subject: RE: [Elecraft] K1 Future Improvements to VFO D3, R17,R18 any one tried?? I have mine set up for 80 khz and have absolutely no problems with temperature stability. In July for the FOBB, the top of my K1 got so hot I literally could not comfortably touch it. I was engrossed

RE: [Elecraft] K1 Future Improvements to VFO D3, R17, R18 any one tried??

Paul, I would not regard 100 Hz of drift in the K1 as a design problem at all - The K1 spec is for drift less that 200 Hz after a 5 minute warmup. The fact that the K1 does not use a DDS vfo is not a 'design problem' as was stated, but surely was a design decision based on price/performance with

[Elecraft] K1 Future Improvements to VFO D3, R17, R18 any one tried??

Hi Gang Just reading page 59 of the K1 manual and it talks about provisions for improvements to the VFO temperature compensation And the use of D3, R17 and R18. Anyone tried this out and done any before and after tests. I would be most interested to see if it made any difference, if no one