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Date Posted: 10:42:34 06/13/02 Thu
Author: ruim
Subject: Re: Cierto es......
In reply to: SirJhonny 's message, "Cierto es......" on 07:56:23 05/04/02 Sat

>
>Es asi nomas.... ahora la diferencia entre el zenner y
>el varicap es PRECIO... yo compre un zenner de 110v a
>20 centavos y un BB809 a $1.90 asi que si tenes la
>plata hace lo que quieras....

??? A ideia de usar o 1N5272 é por ele variar de capaciadade conforme dependo do facto de estar a conduzir electriciade ou não (Varicap). Ao variar a capacidade varia a frequencia de operacao do oscilador que é o pretendido. O facto de ser um zener de 110v é um factor irrelevante (uma coincidencia). Logo podia ser $200 que tinha de gastar esse dinheiro. Podes discutir se existe um melhor substituto do que o BB809, e para verificares isso precisas apenas de confirmar que funciona à tensão pretendida (~5V -> quase todos) e que efectua a variação de capacidade pretendida.
Isso é o que ando ainda à procura logo também não te posso dizer quais alternativas existem :)
Raios, nem sequer consigo encontrar as specs do 1n5272b :(

Gooodluck :)

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