- #1
Keep_i_real
- 10
- 0
Hi. I'm not actually doing an electronics course (Maths & Physics), but I have just finished building a 140W BJT guitar power amplifier and cabinet. I'm looking to build a FET-FET cascode preamplifier now, but am not too familiar with JFETs - So far, I've got:
V+
|
Resistor
|
JFET2 (2N3819)
|
Resistor
|
JFET1 (2N3819)
|
Resistor & capacitor (parallel)
|
Ground
with the input on the gate of JFET1, output from the source of JFET2, and the base of JFET 2 tied to ground.
I've tried to derrive equations for the JFETs, in order to work out the values for the resistors and capacitors, but with no success - can anyone here help me, or point me to any good books/websites?
Cheers,
Mark
V+
|
Resistor
|
JFET2 (2N3819)
|
Resistor
|
JFET1 (2N3819)
|
Resistor & capacitor (parallel)
|
Ground
with the input on the gate of JFET1, output from the source of JFET2, and the base of JFET 2 tied to ground.
I've tried to derrive equations for the JFETs, in order to work out the values for the resistors and capacitors, but with no success - can anyone here help me, or point me to any good books/websites?
Cheers,
Mark
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