From: Garey Barrell 
Subject: Re: [drakelist] T-4XC will not unkey after warming up


Garey Barrell  made an utterence to the drakelist gang
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Larry -

Probably a gassy 6EV7 relay tube. If not then further troubleshooting.

73, Garey - K4OAH
Atlanta

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



Larry Groom wrote:

> I’ve been using an earlier serial number T-4XC (#21000) and recently 
> after being on for 25-20 mins, the radio will
>
> not unkey after transmitting for more than 2-3 mins. I then have to 
> turn the T-4XC off and then back on to get the
>
> twins to go back to receive. I’m not using VOX and I have turn the VOX 
> delay to min but with no luck....
>
> Any ideas?
>
> Thanks Larry
>
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