bought in china - nowhere else
he. writes the original - probably a hoax
see attach. 2sk170
he. writes the original - probably a hoax
see attach. 2sk170
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that's exactly what I did . but it remains a constant current, it's probably bad Chinese radio components and a microcircuit
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More recent simulations with MODIFICATIONS
For purpose to learn more about how to get this circuit working with available jefts, I did this simulation with very good results.
Input Jfets: Idss = 16.3mA
Power Supply: 6 parallel Jfets per rail ( plus 1 Jfet for current source )
C1 and R15 values were modified for better FFT presentation.
C134 and C135 used for my own tests. They don´t belong to original topology.
For purpose to learn more about how to get this circuit working with available jefts, I did this simulation with very good results.
Input Jfets: Idss = 16.3mA
Power Supply: 6 parallel Jfets per rail ( plus 1 Jfet for current source )
C1 and R15 values were modified for better FFT presentation.
C134 and C135 used for my own tests. They don´t belong to original topology.
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Thank you try this option.!
The second part does not change? In your?
Yes, changes.
** The servo circuit has changed some values for simulation only. Other parts of circuit has values changed for correct results after modifications such as JFETs, Mosfet, etc.
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