[Elecraft] K2 S/N 3527 Up and running

[Baker]

 Just completed (as far=
 as one can ever say completed) K2 S/N 3527. What a FB project=
 !

  

 The only constructional=
 problem was I left a wire link out on the RF board. Total build=
 time for K2, KNB2, K160RX and KSB2 about 42 hours including 3=
 

 checking the=
 inventory.

  

 The RX is everything=
 that people have been raving about, it leaves my FT1000MP=
 standing.

  

 My only adverse=
 comments are:-

 On switching on/off I=
 get rather a loud {quot}thump{quot} from the speaker.=
 

 Also it is a shame that=
 the options assembly/operating instructions could not be=
 incorporated into the excellent user manual. 

 I don't like the loose=
 leaflets.

  

 To match the MD-100 mic=
 I had to build a 1 transistor pre amp  with about 20dB=
 gain. This is constructed on a small piece of board which is=
 glued onto the side of 

 a computer connector=
 which mounts on the mic patch connector P1 on the control panel.=
 I now have enough SSB TX audio.

  

 The VOX sensitivity is=
 not quite as high as I would like and on investigation find that=
 I am not sure of what is happening around U4 on the=
 KSB2.

  

 Perhaps someone can=
 explain why COMP OUT is used for PTT DET and why ALC TR is used=
 for /VOX DET.

  

 I am looking forward to=
 building the KPA100.

  

 73

 -- Stewart=
 G3RXQ

 
 
 -- The Bakers' Home

 -- baker@nildram.co.uk=





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