ARLA/CLUSTER: Um "amplificadorzinho" experimental de 20 kW para VHF/UHF

[TUXA]

Viva

Faz sempre jeito, para fritar os miolos ao bairro inteiro ... :-)

73, Luis
CT1GUJ


2013/11/1 João Costa > CT1FBF <ct1fbf  gmail.com>

>
>   Power Amplifier Projects for Experienced VHF/UHF PA Builders
>
>
>
> Important notes:
>
> *All connections between RF parts, and also connections to ground MUST BEas short as possible! This is VHF, not HF, in spite that design
> s may looks like HF! Hi! See mechanical layout of PA designs below!*
> *If input circuit trimmers, need to be at maximum or minimum capacity
> during adjusting, it is necessary to change the length of the cable between
> the exciter and the amplifier itself. The optimal length of the cable
> should be determined experimentally to obtain adjustment with approximately
> the calculated values of capacitances. This experimentally determined cable
> should always be used when operating the amplifier. A change of exciter
> could occasionally require a new length of cable to be determined.*
>
> NEW !
> *20 kW VHF Power Amplifier* *1 x GU36B-1*
>
> <http://www.qsl.net/y/yu1aw/Misc/gu36b-1%2026.jpg>
> <http://www.qsl.net/y/yu1aw/Misc/gu36b-1%2029.jpg>
> <http://www.qsl.net/y/yu1aw/Misc/pa02.jpg>
>
> initial and final design:
>
> *PDF file <http://www.qsl.net/y/yu1aw/Misc/qro%20pa%20gu36b-1.pdf>*
>
> *Built by**: Miška, YU7MS and Pali, YU7PS*
>
>
>
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>
>
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