Acme Fixer's highly efficient Joule Thief help needed.

[TinselKoala]

I dunno, I'm not the one making the claim. My build doesn't seem all that "super efficient" to me, but it is running on batteries that won't run (to light) some of my other JTs.
I like the "gasping for power" effect though.

MileHigh has shown how to make an easy analog power measurement computer out of a single TL082 dual opamp chip costing under a dollar, with a few resistors and a capacitor, that produces an output that can be read on an ordinary DMM to give power. I don't know if it will work on a JT signal but I'm going to give it a try, later on. I also have my light intensity meter using Arduino that I can use to measure the light output of its "standard" white LED. I'm not sure how accurate this is when looking at a pulsed light source, but I will be finding out.

[Legalizeshemp420]

I found a way to test for inductance but I need a sine wave source of 1hz to 2mhz that is super easy but I must be able to manually sweep it.

Btw, on this BK2120 it came set for 110Vac but has 110vac/120vac/220vac/240ac.  I haven't ever, in 30 years of probing the AC outlets with a meter, seen 110vac unless something was wrong it was always 120-122vac.  Should I leave it at 110vac or switch it to 120vac?

[TinselKoala]

OK, I've at least measured the battery voltage during the gasping performance.

This one needs around 715 mV to turn on, and turns off at around 635 mV. This is higher by about a tenth of a volt than the performance of the DALM.

[TinselKoala]

I found a way to test for inductance but I need a sine wave source of 1hz to 2mhz that is super easy but I must be able to manually sweep it.

Btw, on this BK2120 it came set for 110Vac but has 110vac/120vac/220vac/240ac.  I haven't ever, in 30 years of probing the AC outlets with a meter, seen 110vac unless something was wrong it was always 120-122vac.  Should I leave it at 110vac or switch it to 120vac?

I'd move it over to the 120 VAC setting. It probably won't make any difference. If you were in Japan you would be better off using the 110 position.

You really really do need a signal generator. I have one of these and there is nothing wrong with it for the purpose you need.
http://www.ebay.com/itm/1MHz-Function-Generator-Elenco-FG-500K-Kit-Waveform-/331042803024

For your inductance measurement you will be sweeping a tank circuit and looking for resonance, so you just need to change the value of the capacitor in your tank in order to get the resonance frequency into the range of your instrumentation.

If you are setting up an electronics workbench you might like to budget for something a bit better. This looks really cool to me, I wish I could afford one right now.
http://www.ebay.com/itm/AE20125-10-MHz-Sweep-DDS-Function-Generator-Kit-with-USB-and-Modulation-/251169054479?pt=LH_DefaultDomain_0&hash=item3a7ad79f0f

Or, for a little less, you can get an Arduino and learn how to use it. They are amazing critters, very useful for all kinds of things.
http://www.youtube.com/watch?v=S6N8ys8FiA4

[Legalizeshemp420]

DALM is a better circuit from my testing here as well.  I am not sure what AcmeFixer was on about and I can't tell either since he has not appeared on this thread YET his name, and circuit, was mentioned in the title of this thread.

I guess we can safely say it is pretty much rubbish and if you notice he supposedly made it even better in the second version but it did get more complicated as well.  I have my suspicions about that circuit as well.

Well, time to stop what I am doing until I can measure inductance.