[Drake] T4Xc Troubleshooting

[Bry Carling]

I have the crystals if you need it.

On 22 May 2010 at 15:42, Singley, Rodger wrote:

> Scott,
> 
> Are you sure it is the oscillator dead on this range and not a
> problem with the premix or driver?  Listen for the oscillator on a
> nearby general coverage receiver.  If working you should hear it at
> 18.1 +/- a couple of Khz.  If it isn't oscillating try sticking the
> 40 meter range crystal in one of the auxiliary sockets to rule out a
> socket or switch contact issue.  If it still doesn't work take a
> look at the capacitor selected by S-4B as part of the oscillator
> circuit.
> 
> For some reason, 40 meter crystals are more troublesome than others
> and I have found a couple that would work in some of my 4 lines but
> not others.  It is unlikely you have run into two troublesome
> crystals in a row but not impossible.  
> 
> Rodger WQ9E 
> 
> 
> -----Original Message-----
> From: drake-bounces at mailman.qth.net on behalf of Ka9p at aol.com
> Sent: Sat 5/22/2010 3:27 PM
> To: drake at mailman.qth.net
> Subject: [Drake] T4Xc Troubleshooting
>  
> After spending a fair amount of time getting a Dayton T4XC "working"
> radio  
> working almost, I've got it down to one last problem.
>  
> The oscillator doesn't run on 40.  I've great ocillation and power
> out  on 
> all other bands, and I've swapped a known good crystal with nary a
> whimper,  
> and thought before I started tearing into it I'd ask if anyone had a
> good 
> first  and second guess of what to try first?
>  
> Thanks a lot, Scott
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