My take on a discrete shunt voltage regulator

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Oh, another thought here. I am turning circles myself and am getting some head spins.

Now it is almost a 2m version!!! Only J4 is still a 2SK170 without R15, and 2n3819 is there instead of 3k3. All others are 2m version.

Just check that 2n3819 has an Idss = 2 - 20mA.

Should I swap the 2n3819 with a 3k3 resistor? No brainer or getting into a new territory?

P.S. Ha, Ha! I cannot escape the duty of a tester again, as it is now almost a 5m.
 
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