[Amps] FW: Zener Bias Replacement

Steve Thompson g8gsq at eltac.co.uk
Tue Nov 7 17:45:39 EST 2006



Larry Carman wrote:
> OK... you all have sold me on the idea of using zeners instead of standard
> diodes. At least by using standard diodes I have determined the bias voltage
> I need. Now I have to find a zener supplier that will accommodate a poor
> mans budget. 
> Regards to all and thanks for the info.
How does a smaller diode with a big transistor fare (for example, see 
the very bottom of http://i5uxj-2.cln.it/amp/schemi/w6sai/w6sai.html) - 
or a big transistor with a TL431 as in the G3SEK 'triode board'? Either 
will likely be a lot cheaper than a high power zener.

Steve


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