Neurotic Norman
- Sep 9, 2014
- 1
- Joined
- Sep 9, 2014
- Messages
- 1
Hello all! I'm having a little trouble with a circuit I've found. You see, it was originally designed for vacuum tubes. Since they aren't exactly easy to find or work with, I found a version that has been converted for use with transistors. Here's the caveat: It's untested and the values have been unconverted. Onto my questions:
1. How might one take the values like resistors and capacitors from the original vacuum tube circuit and convert it to the solid state?
2. What would be the best way to prototype circuits?
3. Does it matter if one uses an N Channel JFET or a MOSFET transistor?
Here are some of the sites from which I have drawn the theory of operation and schematics.
The theory of operation: http://www.beam-wiki.org/wiki/Grey's_Turtles
The Original Vacuum tube Schematic: http://www.beam-wiki.org/wiki/Image:Anotated_speculatrix_-1.GIF
The solid state modified version: http://www.beam-wiki.org/w/images/2/2c/Speculatrix_redux.gif
Thanks in advance!
1. How might one take the values like resistors and capacitors from the original vacuum tube circuit and convert it to the solid state?
2. What would be the best way to prototype circuits?
3. Does it matter if one uses an N Channel JFET or a MOSFET transistor?
Here are some of the sites from which I have drawn the theory of operation and schematics.
The theory of operation: http://www.beam-wiki.org/wiki/Grey's_Turtles
The Original Vacuum tube Schematic: http://www.beam-wiki.org/wiki/Image:Anotated_speculatrix_-1.GIF
The solid state modified version: http://www.beam-wiki.org/w/images/2/2c/Speculatrix_redux.gif
Thanks in advance!