Weird issue with high voltage mosfet buffer  [SOLVED]

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Reachahighernoon
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Post by Reachahighernoon »

Manfred wrote: 22 Sep 2021, 06:57
Why is the LND150 so common? I see it more than any other mosfet

I also ended up using a jfet buffer powered by the 12V for the heaters
The following concerns the comparison with Power-MOSFETs.
5 -10 times smaller input capacity.
Smaller noise figure.
Much smaller forward conductance, thus more suitable for the source circuit.
Smaller case (TO92).
I see that you have decided to use the JFET circuit.
I see, I thought that it's because it is "more tube like" but what you say makes sense

Yeah and from what I hear it works very well

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