Joule Thief

[xee2]

@ Jeanna:

One switch turns on the charge circuit for the flash and the other (one with long prongs) fires the flash when the shutter is pushed.

EDIT: tube connects between lead at striped end of diode and negative battery clip.

[Pirate88179]

@ All:

OK, here we go.  I just illuminated 300 LEDs with the single AA battery Fuji circuit.  The lights are, I believe, (subjective) just as bright as the 200.  What do you think???  The 3 strings of lights are connected in parallel.  I can't really try series until I take the lights off the tree. (maybe in April...ha ha)

Bill

[Pirate88179]

The first pic here is of the rear of the tree and you can see my circuit on the lower left. (yellow AA battery)

I really can't believe this!!!  PS  You can see my color organ on the lower right.  (The plastic box with the large knob)  There are 3 female plugs coming out of that, as you can see, and it is not connected to this circuit at this time.

BIll

[xee2]

@ Pirate88179

Good experiment. They look bright to me.

[Pirate88179]

@ Xee2:

Thank you.  They don't quite light up the room, but you can see my antique telephone (from Bell Labs) in the background on the right that my Dad made into a lamp.  Hmm.... I wonder if it will do 400?

Bill