Author Topic: Vfe zener cap combination. I canít see whatís going on there on both the Tractor Beam and Bumble Bee  (Read 259 times)

jimilee

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Vfe zener cap combination. I canít see whatís going on there on both the Tractor Beam and Bumble Bee. Is the cap just paralleled with the zener?


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jimilee

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Pedal building is like the opposite of sex.  All the fun stuff happens before you get in the box.

jubal81

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It's a cheap voltage regulator. The combination is used to make reference and bias voltages for the JFETs. You wouldn't want to use a resistor divider there because the supply voltage can fluctuate with battery life or different DC supplies. The parallel cap it to reduce noise on the VREF.


Here's some info you want to read more about zoners as voltage regulators.
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jimilee

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Pedal building is like the opposite of sex.  All the fun stuff happens before you get in the box.