[Drake] R2B RX

[Garey Barrell]

Jack -

Try a 6EA8 in place of the 6U8 and most likely your original crystal 
will work.  This is a common problem in the 2B. 

Keep in mind that the 2B is essentially an 80M receiver with crystal 
controlled converters for the other bands. 

A full alignment is not all that difficult following the procedure in 
the manual.  Be careful adjusting the Passband Tuner, the slugs should 
require very little if any adjustment.  They also have some "spring" and 
tend to "jump" in small steps.  Unless the Passband Tuner seems to be 
peaking off from where it should, you might just skip that part.  

Also, the Passband knob is a 1/4" inch shaft knob on a 1/8" inch shaft, 
with a fiber "sleeve".  The fiber sleeve is slit lengthwise to allow the 
knob setscrew to compress it to grab the shaft.  Be sure the sleeve is 
oriented inside the knob with the slit 90 degrees away from the setscrew.

73, Garey - K4OAH
Atlanta

Drake C-Line Service Manual
<http://hr99.home.mindspring.com/R-4C_Servicez/>



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
>
>  
>