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Scheme GU81???


Guest YO4HSP

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Cel mai interesant QRO cu 2 x GU81: http://www.cqham.ru/HiFi_Contester_EX8A.htm

Este mai complicat, este in grila pasiva cu compensarea capacitatii de intrare a tuburilor cu filtru Pi la intrare si include si compensarea capacitatii de iesire a tuburilor cu circuit acordat in anod, astfel incat functioneaza f. bine inclusiv la 30MHz.

A fost construit practic pe un sasiu de la R-140: http://www.cqham.ru/R140.htm .

Discutii pe marginea proiectului: http://news.cqham.ru/articles/discuss_show.phtml?id=602

Cateva observatii ale autorului despre GU81, insa din pacate si cu ceva exagerari: http://www.cqham.ru/pa_gu81.htm

 

altul: http://www.cqham.ru/ra6ed_1.htm , http://www.cqham.ru/pa65_19.htm

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