[Amps] Zener Bias Replacement

[Gudguyham at aol.com]

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