another small breakthrough on our NERD technology.

[picowatt]

MH,

ditto... it's late...

TK,

If you would, hook up a small light bulb, a milliammeter, or your B2B LED's, show us some current out of that FG as well...

PW

[picowatt]

@All,

I see my typing skills are inverse to my tired factor.

Maybe I'll figure out how to edit posts at some point.

PW

Never mind, I just figured out the use of "modify".... and fixed a typo...

[TinselKoala]

MH,

ditto... it's late...

TK,

If you would, hook up a small light bulb, a milliammeter, or your B2B LED's, show us some current out of that FG as well...

PW

I have done so with the cheapo DMM; it puts about 90-110 mA into the circuit when it's set high enough to turn the mosfet(s) on with that little oscillation on the bottom of the gate trace like her scopeshots show. The FG's voltage output is noticeably pulled down when connected to the circuit; simply measuring the input resistance of Tar Baby across where the FG hooks to the circuit, unpowered and disconnected from all test equipment completely, gives me a value of 34.7 Ohms using a Simpson DMM.
Look back here in a few minutes and I'll have some pix attached.
OK, here they are. The overview shows the DMM ammeter hooked in series with the FG's "positive" lead. (But I got the ammeter polarity backwards, it should be indicating -0.11 A instead of +, I think.) The other lead from the DMM goes to the +FG input on the board. The scope shot shows the operating condition, top trace the FG gate drive signal (note the spikies from the added lead length and the DMM) at 5 V/div, bottom trace the mosfet common drains at 20 V/div, zero levels indicated (except the top trace has drifted from the marker a bit; it's really at zero at the top), timebase 0.2 millisec/div.

[TinselKoala]

And before y'all start razzing me about the rat's nest wires, here is where I started with this thing... I found the wire lengths were necessary for the oscillations with the bigger mosfets, so I cut wires approximately as long as Ainslie's in the video demo, and the RATs nest is the result. It works great!!

[TinselKoala]

Effect of FG Offset on Circuit Response. Long and lazy, um uh sorry about the light.

Note: this video does not represent anything, it only relates to it.

http://www.youtube.com/watch?v=KXAqEinb8YU

YMMV, but not by very much, unless you are using an old WaveTek Model III or something.