another small breakthrough on our NERD technology.

[Groundloop]

For your amusement:

http://www.youtube.com/watch?v=ZMU23e0m3T0
http://www.youtube.com/watch?v=HK9TNFuvM2k

Note that the circuit is mostly powered by the Function Generator, and it may actually be possible in some cases for the Function Generator to.... charge the battery.

TK,

Can you also try using a 9 volt battery with a 10K resistor in series with the 9 volt battery
as a negative bias for the mosfets and see if you get oscillations?

GL.

[poynt99]

Rosemary,

You've cleverly dodged my question 5 times. Remember, the one about what your implied significance is of the oscillation in the simulations? Nicely done. 

Let's review those dodgy responses:

Hello Poynty Point,

Not sure what you're asking.  Is there something there that's ambiguous?  Let me know.
Kindest regards,
Rosie Pose

Poynty Point?  Just read the follow up post.  That's the reason I included these observations.  Still not sure of your question.

LOL  No Poynty Point.  I'll pass if you don't mind.  I've already posted it over twice.

Really Poynty Point?  You'd appreciate a link?  For my part I'd appreciate knowing who it is that you're trying to address here?  Which of us readers are you proposing must rally to earn your appreciation.

Who exactly are you talking to?

Your technique is somewhat subtle (but abunantly obvious), yet effective. How or where did you learn this technique?

I asked nicely 5 times, and all 5 times my question was deflected. Clearly you are uncomfortable answering that question.

Here it is again:

With reference to achieving the oscillation in a simulation; so what?

What exactly are you implying is the significance of this?   

[TinselKoala]

TK,

Can you also try using a 9 volt battery with a 10K resistor in series with the 9 volt battery
as a negative bias for the mosfets and see if you get oscillations?

GL.

I presume you mean _instead_ of the FG hookup. In other words, eliminating the groundloop and providing a straight DC drive to the circuit in place of the FG hookup.
Negative bias meaning I supply negative polarity to the point in the circuit where the FG's "positive" connection is made, right? And then "positive bias" means I supply positive polarity at this point.

Here are the results. There are 4 cases:
1)  9V battery providing negative bias thru 10K, with 3 volt battery pack _disconnected.
Result: Output trace goes to steady  - 0.5 V DC, no oscillations whatsoever.
2)  9V battery providing negative bias thru 10K, with 3 volt battery pack connected.
Result: Output trace goes to +3 V DC as soon as 3 volt pack connected, no oscillations; connection of 9V makes no discernible effect at all.
3)  9V battery providing _positive_ bias thru 10K, with 3 volt battery pack _disconnected.
Result: Output trace goes to steady  + 2.0 V DC, no oscillations whatsoever.
4)  9V battery providing _positive_ bias thru 10K, with 3 volt battery pack connected.
Result: Same as Result 2.

In brief: my version of the circuit does not oscillate when supplied with DC from the 9v battery+10K combination instead of the FG.

[eatenbyagrue]

I love your name, by the way.  REALLY neat.

Oh you have played Infocom's Zork?  I was often without a torch.

Anyway, I am glad to be in a position to lend some moral support to a hard working inventor like yourself.  I was also in a position once where I started my own venture and had to deal with criticism, so I empathize with your position.  Keep up the good work!

[Groundloop]

I presume you mean _instead_ of the FG hookup. In other words, eliminating the groundloop and providing a straight DC drive to the circuit in place of the FG hookup.
Negative bias meaning I supply negative polarity to the point in the circuit where the FG's "positive" connection is made, right? And then "positive bias" means I supply positive polarity at this point.

Here are the results. There are 4 cases:
1)  9V battery providing negative bias thru 10K, with 3 volt battery pack _disconnected.
Result: Output trace goes to steady  - 0.5 V DC, no oscillations whatsoever.
2)  9V battery providing negative bias thru 10K, with 3 volt battery pack connected.
Result: Output trace goes to +3 V DC as soon as 3 volt pack connected, no oscillations; connection of 9V makes no discernible effect at all.
3)  9V battery providing _positive_ bias thru 10K, with 3 volt battery pack _disconnected.
Result: Output trace goes to steady  + 2.0 V DC, no oscillations whatsoever.
4)  9V battery providing _positive_ bias thru 10K, with 3 volt battery pack connected.
Result: Same as Result 2.

In brief: my version of the circuit does not oscillate when supplied with DC from the 9v battery+10K combination instead of the FG.

TK,

Thank you for taking time to test this.

>>Negative bias meaning I supply negative polarity to the point in the circuit where the FG's "positive" connection is made, right? And then >>"positive bias" means I supply positive polarity at this point.

Yes, the above is correct.

>>In brief: my version of the circuit does not oscillate when supplied with DC from the 9v battery+10K combination instead of the FG.

My circuit does oscillate in your 2 case. Try another main input voltage, like 0 to 12 volt, and see if you get any oscillations.
I never get any oscillations with a positive bias.

GL.