jack orman's mini booster technical questions

[Frances Rhodes]

hi everyone

i'm trying to understand every different part of the mini booster designed by jack orman and i'm having a hard time trying to figure out if the current source using the first transistor (jFET or NPN) also acts as a resistor or not at all.
i tried to contact jack orman but he is hard to reach, so i thought i might as well ask it here.

if we replace the current source by a resistor, is the resistor supposed to act like a "current source"? i'm a little confused with this circuit and with the role of all the different parts.
if you guys can help me with this that would be a lifesaver!!

there is also a tube version of the circuit and before i can build it i need to find every value of every component, so i need to understand the transistor circuit perfectly before i try to build it with tubes!
i found some very usefull information about the drain and source (or cathode and anode for triodes) resistors but i still miss some parts.

cheers

frances

[wavley]

Check out R.G.'s article over at Geofex, it explains everything in detail with a few mods.

[Frances Rhodes]

thanks, i'll try to find my answers there!