PhysicsProf Steven E. Jones circuit shows 8x overunity ?

[poynt99]

Sorry folks. This LTSpiceIV simulation must be seriously flawed.I've got COP 26 from slight modification of circuit.Bizzarre....

What is your mod, and how are you measuring the input and output power?

.99

[lanenal]

Sorry folks. This LTSpiceIV simulation must be seriously flawed.I've got COP 26 from slight modification of circuit.Bizzarre....

Interesting. This is first time I heard somebody saying LTSpice getting OU simulation results. Could you upload your modification and tell us how did you measured cop?

[JouleSeeker]

Laneal, appreciate your input.  At the same time, please note that Xee2 and Nul-pts and Gibbs and I have previously placed the diode across C-E of the transistor. 

  Below is a circuit diagram from Xee2 (right) compared with your entry today (left).  Note the similarities.  Xee2 does add a small cap which is important.

He and I both MEASURE around 5-6 microwatts Pinput to light the LED with the circuit on the right... does your SIM allow that?  Same question to .99.  (I am using the cap/time method, L~120 uF.)
Thanks.

PS -- Nul-pts mod is running at around 2 uW, and IIRC Gibbs' at about 5uW.

@forest -- welcome.  I'm trying to understand your sketch, but it looks similar to the bifilar-wound coils in use in devices here.
ps -- false alarm on the grand-child delivery... but we know she will come out!

[lanenal]

Laneal, appreciate your input.  At the same time, please note that Xee2 and Nul-pts and Gibbs have previously suggested placing the diode across C-E of the transistor. 

  Below is a circuit diagram from Xee2 (right) compared with your entry today (left).  Note the similarities.  Xee2 does add a small cap which is important.

He and I both MEASURE around 5-6 microwatts Pinput to light the LED... does your SIM allow that?  (I am using the cap/time method.)
Thanks.

ps -- false alarm on the grand-child delivery... but we know she will come out!

Professor, you have got the wrong guy -- the one you compared with Xee's is the traditional JT without looping -- and it is the other in the same post that will loop the device. I used the same understanding to introduce looping into the circuit you have brought our attention to.

P.S.: that's not a false alarm, it is a rehearsal.

[forest]

Interesting. This is first time I heard somebody saying LTSpice getting OU simulation results. Could you upload your modification and tell us how did you measured cop?

He he Sorry, it hast to be me first time playing with this simulation program. Check your self. What if we step input voltage ? Is there any way to avoid placing high voltage across battery ?