{Collins} Re: 75S-3 advice



Hi Ron,
    Not to be concerned.  The 75S-3 uses a 6BF5 as the Audio output tube 
which normally runs very warm.  After many years of use, the cabinet 
will show some discoloration right over the tube.  If you look at a well 
used 32S-X transmitter or KWM-2, you will notice the same thing over the 
6146 output tubes.  Some people have actually converted the audio output 
to a 6AQ5 which runs cooler but most of us have not.  As long as it 
isn't beat up, works well, and will clean up nice, you will probably be 
very happy with it.  The 75S-3, by the way, is rumored to be the best of 
the lot when it comes to the S-Line receivers.

        73
Tony - W9JXN



Ron Skipper wrote:

>Hello all,
>
>I am contemplating the purchase of a 75S-3. I have seen pictures of it, 
>and it really looks exceptionally nice. The only thing I noticed is that 
>there appears to be a "hot spot" on the right rear inside of the top 
>cover. It looks as if the heat from a tube has caused discoloration of 
>the cabinet paint.
>
>Is this cause for concern?
>
>Thanks in advance.
>
>Ron Skipper W8ACR
>Rugby, ND
>
>Sponsored by the Collins Collectors Association http://www.collinsradio.org
>Nets: Tues: 3.805 Mc-2000 Central / Thur: 3.875 Mc-2000 Central
>Fri: 3.895 Mc-2000 Pacific / Sun: 14.263 Mc-2000 UTC
>1st Wed (of the month) AM Net 3.880 Mc-2000 local (ET, CT, MT, PT)
>Sun AM Net: 29.050 Mc-1200 Central
>
>
>  
>


Sponsored by the Collins Collectors Association http://www.collinsradio.org
Nets: Tues: 3.805 Mc-2000 Central / Thur: 3.875 Mc-2000 Central
Fri: 3.895 Mc-2000 Pacific / Sun: 14.263 Mc-2000 UTC
1st Wed (of the month) AM Net 3.880 Mc-2000 local (ET, CT, MT, PT)
Sun AM Net: 29.050 Mc-1200 Central






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