[Drake] R2B RX

[Bob Camp]

Hi

Have you tired swapping out the 6U8?

If the problem is with a number of crystals I would guess it's more  
likely some common element in the oscillator (like a tube or cap).  
One thing going wrong is more likely than a whole bunch of things  
going wrong.

When the swapped out the filter caps did they put in the right  
values? If they grabbed some low value parts from the junk box your  
voltages may not be right. I would guess you would be complaining  
about hum if that was the case though.

     Take Care

             Bob Camp
             KB8TQ


On May 15, 2005, at 3:45 PM, k0ewu at juno.com wrote:

> Hi, I am having trouble with the 6U8 mixer/osc stage-the osc section.
> The xtals that came in the used radio do not oscillate. The 11 mhz  
> xtal
> did not work subbed a 11 mc rock from my Hallicrafters collection now
> have 40 m.
> Put the old xtal in, now it works. I had previously cleaned the  
> pins with
> de-oxit.
> The 80 m is not at all sensitive, I hesitate to jump in with an  
> alignment
> program when there may be a problem somewhere else.
> The filter can was open at each terminal, replaced with an under  
> chassis
> group.
> Any suggestions will be appreciated.
> Jack     K0EWU at juno.com
> ______________________________________________________________
> Drake mailing list
> Home: http://mailman.qth.net/mailman/listinfo/drake
> Help: http://mailman.qth.net/mmfaq.html
> Post: mailto:Drake at mailman.qth.net
>
>