From: Garey Barrell 
Subject: Re: [drakelist] 20.8 MHz (30 Meter) T-4XC Crystal wanted


Garey Barrell  made an utterence to the drakelist gang
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Peter -

You "can" shift it some, but not very much.   The Carrier Oscillator is 
shifted from being centered between the two filters well into the 
passband of the LSB filter by switching C1 in series with the crystal.  
You "could" adjust the value of this cap to vary the shift, but you have 
to make sure that it's far enough to be off the skirt and past the 
corner of the passband.  This usually takes you at least 7-800 Hz from 
the "normal" position, with another 100 Hz buffer you're at 900 Hz!

73, Garey - K4OAH
Atlanta

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



Peter Hoon wrote:

>"Peter Hoon"  made an utterence to
the drakelist gang
>----------------------------------------------------------------------
>  
>
>>Transceive
>>isn't all that satisfactory on CW anyway, since the offset is around 900
>>Hz and most folks like to listen to CW at a somewhat lower frequency.
>>    
>>
>
>Is it possible to set the offset lower during the alignment of either or
>both of the R4C and T4XC ?
>
>Tks, VE1CHS
>  
>
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