Quote from: Loudthud on April 30, 2020, 11:03:59 PMCompletely different, I would say:
Not exactly a cascode circuit because the gates are connected together.
Yes, I wanted to know the name of the Roland Blues Cube gain stage circuit, if there is one, to google for it.
Quote from: Loudthud on April 30, 2020, 11:03:59 PM
A quick experiment on the curve tracer shows that it knocks Idss down to about 60% of the single JFET value. Gain is also lower. The curves look slightly more linear.
I've simulated the circuit in LTspice.
I used generic JFET model from LTspice. Input source: 100mVp, Ri=10kohm
Gain for dual FET stage:
Gain for single FET stage:
Dual FET output signal is slightly more distorted than single FET.
What's the benefit of dual FET?