Rework stuff

[Phillip Buckholdt]

H i;

Maybe some one can help. I am building K-2 # 5423 with the rework
eliminators.
I got the unmdules and missing parts but the instructions were not good for
installing missing parts. I figured it all out except the 60 meter module.
   I installed D-19 and 20 before testing and alignment part II. All was
fine until VCO control voltage setting. The low and high freq voltages at
R-30 were well within range on all bands except 40 meters where it was
7.000--5.51v   7.300--7.91v and sensitivity seemed low on 40.  Then I
discovered on the K-2 schematic DO NOT install D 19, 20 with out changing
C-71 from 82pf to 120pf.
   I replaced C-71 with the 120pf that came with the rework parts and now 40
is deaf and the VCO voltage is7.93 volts at 7.000 and hardly changes up to
7.300.

   Are there other changes that need to be made?  Maybe somebody reading
this has had this problem.

    tnx Phil

_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com

[Able2fly]

 
 
Phil,
 
Check the "companion guide" on their web site. A menu setting  also needs to
be changed. (extended vfo)
 
Bill  K3UJ
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
 

Maybe some one can help. I am building K-2 # 5423 with the rework  
eliminators.
I got the unmdules and missing parts but the instructions  were not good for
installing missing parts. I figured it all out except the  60 meter module.
I installed D-19 and 20 before testing and  alignment part II. All was
fine until VCO control voltage setting. The low  and high freq voltages at
R-30 were well within range on all bands except 40  meters where it was
7.000--5.51v   7.300--7.91v and sensitivity  seemed low on 40.  Then I
discovered on the K-2 schematic DO NOT  install D 19, 20 with out changing
C-71 from 82pf to 120pf.
I replaced C-71 with the 120pf that came with the rework parts and now 40
is  deaf and the VCO voltage is7.93 volts at 7.000 and hardly changes up to  
7.300.

Are there other changes that need to be  made?  Maybe somebody reading
this has had this problem.

tnx Phil




_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com

[Don Wilhelm-3]

Phil,

This is one aspect that I would like to see the rework eliminator guys
reconsider, but since you have now added D19 and D20 and have changed C71 to
120 pF, do the next step and enter the K2 menu and set D19 to ON - then you
should be able to get all bands within range.  By the way, the range of
voltages allowable after making these changes is between 1.0 and 7.5 volts,
but make an attempt to get them all within the 1.5 to 7.0 volt range first.

73,
Don W3FPR

> -----Original Message-----
>
> Maybe some one can help. I am building K-2 # 5423 with the rework
> eliminators.
> I got the unmdules and missing parts but the instructions were
> not good for
> installing missing parts. I figured it all out except the 60 meter module.
>    I installed D-19 and 20 before testing and alignment part II. All was
> fine until VCO control voltage setting. The low and high freq voltages at
> R-30 were well within range on all bands except 40 meters where it was
> 7.000--5.51v   7.300--7.91v and sensitivity seemed low on 40.  Then I
> discovered on the K-2 schematic DO NOT install D 19, 20 with out changing
> C-71 from 82pf to 120pf.
>    I replaced C-71 with the 120pf that came with the rework parts
> and now 40
> is deaf and the VCO voltage is7.93 volts at 7.000 and hardly
> changes up to
> 7.300.
>
>    Are there other changes that need to be made?  Maybe somebody reading
> this has had this problem.
>
>     tnx Phil
>

_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com