>Corect! However you du use some forced air cooling ... 2 Fans of 145CFM will
>do the trik :)
>But this was not what the gentlemen asked :)
>
** This issue had nothing to do with what the gentleman asked. It has
to with what Alex proposed as a solution.
cheerz, Alex
>
>
>
>
>> -----Original Message-----
>> From: 2 [mailto:2@vc.net]
>> Sent: Wednesday, July 17, 2002 10:43 AM
>> To: alex; Mike Krzystyniak; AMPS
>> Subject: RE: [Amps] KW Linear for FT-817
>>
>>
>>
>>
>> >
>> >If you use two MRF157 transistors you can get 1,5KW SSB with only 25W of
>> >drive. And you get the amp in a 11/4/7 inches box :)
>> >
>> ** A 1500W-out transistor HF linear amplifier produces c. 1600w-max of
>> heat. A heat sink to remove this amount of heat is somewhat :) larger
>> than 11" x 7" x 4".
>>
>> cheers, Alex
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >> -----Original Message-----
>> >> From: amps-admin@contesting.com [mailto:amps-admin@contesting.com]On
>> >> Behalf Of Mike Krzystyniak
>> >> Sent: Wednesday, July 17, 2002 1:02 AM
>> >> To: amps@contesting.com
>> >> Subject: [Amps] KW Linear for FT-817
>> >>
>> >>
>> >> I'm researching an amp project for a friend. He wants a legal
>> >> limit or near
>> >> legal limit amp that can be driven from a Yaesu FT-817. It's
>> >> been 25 years
>> >> since I rolled and amp so I thought I'd ask the gang here. Does
>> >> anyone have
>> >> a suggestion for a tube or pair of tubes that when driven with 5
>> >> watts will
>> >> run up to a KW out?
>> >>
>> >> Thanks... Mike K9MK/5
>> >>
>> >>
>> >>
>> >> _______________________________________________
>> >> Amps mailing list
>> >> Amps@contesting.com
>> >> http://lists.contesting.com/mailman/listinfo/amps
>> >>
>> >
>> >_______________________________________________
>> >Amps mailing list
>> >Amps@contesting.com
>> >http://lists.contesting.com/mailman/listinfo/amps
>> >
>>
>>
>> - R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K,
>> www.vcnet.com/measures.
>> end
>>
>
>_______________________________________________
>Amps mailing list
>Amps@contesting.com
>http://lists.contesting.com/mailman/listinfo/amps
>
- R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K,
www.vcnet.com/measures.
end
|