[Amps] RE : Zener Bias Replacement

[hermans]

It might be a good praktis to use both diodes in serie , zener and normal Si
diodes, temperature drift is opposit.

Jos  on4kj


-----Message d'origine-----
De : amps-bounces at contesting.com [mailto:amps-bounces at contesting.com] De la
part de Gudguyham at aol.com
Envoyé : lundi 6 novembre 2006 18:24
À : W2RU at frontiernet.net; a_borg at yahoo.com
Cc : amps at contesting.com
Objet : Re: [Amps] Zener Bias Replacement


 
In a message dated 11/6/2006 1:11:42 P.M. Eastern Standard Time,  
W2RU at frontiernet.net writes:

>I  need to replace a zener bias diode. I have a ton of 1N5408's. Any  
>problems with using a string of 9 X .07v [sic] =6.3v diodes connecting  
>the cathodes to the center tap replacing a 6.3v 50W zener  ?
>  



Typically this is done on may amps, but be sure to reverse the diode  
polarity when used this way.  It works fine in an SB-220 and I have done it
several 
times.  Good Luck   Lou
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