[Elecraft] Need Help

Tue Jul 8 00:34:01 2003

One more thing, Lou - if you measure the dc voltage at TP1, does it measure
about 4 volts?  If not, is U3 in backwards?

Bill
NA7Y

----- Original Message ----- 
From: "Lou Roux" <[email protected]>
To: "William M. Spaulding, Sr." <[email protected]>;
<[email protected]>
Sent: Monday, July 07, 2003 9:16 PM
Subject: RE: [Elecraft] Need Help

> Thanks Bill and Gregg for your advise, I'll keep looking and report my
> findings to the group. I would think there would be some indication if
even
> so slight if it were a bad T5 or  something associated but all I get is
> goose eggs. I'm not a good troubleshooter but I'll keep plugging away.
>
> Lou - W6UR
>
>
> -----Original Message-----
> From: William M. Spaulding, Sr. [mailto:[email protected]]
> Sent: Monday, July 07, 2003 6:07 PM
> To: Lou Roux; [email protected]
> Subject: Re: [Elecraft] Need Help
>
>
> Hi, Lou,
>
> My advice is to check out EVERYTHING there is to check about T5.  Is it
> wound correctly.  Does the green start winding coincide with the red start
> winding?  This is a biggie!.  If you aren't careful about winding
> transformers, start windings can become backwards very easily.  Did you
> strip enough insulation so that the windings are making contact?  Look for
> shorts, cold solder joints, mis-installed Q18.  This VCO really does work,
> and it depends a lot on doing T5 correctly in all aspects.
>
> Good luck,
>
> Bill Spaulding
> NA7Y
>
>
> ----- Original Message -----
> From: "Lou Roux" <[email protected]>
> To: <[email protected]>
> Sent: Monday, July 07, 2003 5:44 PM
> Subject: [Elecraft] Need Help
>
>
> > Hi guys,
> >
> > I've been working away on K2 #3578 and all was going well until this
> problem
> > arose. In the alignment and test, part 2 page 57, using CAL FCTR on the
4
> > MHz calibration all is well. Then on to the VCO test with the probe in
TP1
> > the manual states there should be a counter reading in the 8 to 10 MHz
> range
> > BUT I get 0000.00. The counter probe seems to be working so I'm stymed.
> > Where should I start looking???
> >
> > Any help will be greatly appreciated!
> >
> > Thanks,
> >
> > Lou - W6UR
> >
>
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