Considering the common zener bias circuit (with the 2n3055 and resistor), what
precautions should be taken if I wanted two different zeners (and associated
bias voltages) selected by a switch or relay? Is there a danger in the moment
when the switch/relay throw is transferrring from one pole to the other and
neither zener is in the circuit? Likewise, if I used a make-before-break
setup, can the two zeners be in parallel for a moment without causing trouble?
Thanks,
Steve KK7UV
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