Joule Thief

[Pirate88179]

Germanium diodes sources:

http://www.surplus-electronics-sales.com/index.php?main_page=product_info&cPath=10&products_id=766

http://www.surplus-electronics-sales.com/index.php?main_page=product_info&cPath=10&products_id=898

http://www.surplus-electronics-sales.com/index.php?main_page=product_info&cPath=10&products_id=916

http://www.jpmsupply.com/servlet/the-439/1N34-A-Germanium-Diode/Detail?gclid=CMb1kpW--LMCFQsGnQodjyEAMg

I bought a bunch of these diodes a few years ago.

Bill

[Pirate88179]

Germanium transistors:

http://www.germaniumtransistors.com/servlet/StoreFront

http://www.ebay.com/itm/SALE-MP25B-Russian-Germanium-Transistors-PNP-100pcs-/130729209680

http://www.transparentsound.com/transistors/vintage-transistors/sale-wanted/sale-wanted.htm

Bill

[kooler]

  As most of us can't find or obtain those illusive little germanium diodes, I wish you the best.  We still have not even scratched the surface on this circuit. I have a feeling that we'll figure it out, one way or another though. Plengo, Lynxsteam,

nick,
as for the  germanium diodes.. i have seen the bat46 out perform the germanium diodes in certain crystal radio apps.. may not be the case in this curcuit..
but it will be what i try .. when i build this curcuit soon..
as i smoked the rest of my 1n60's and 1n270's as i was playing with a device that had a em pulse that fried all things on my metal table in my foxhole.. it also took out my cfl bulbs , electronic floru lights.. near to it..  so i am trying to restock all that i lost..
i wasted over 200 1n60 diode trying to cook them.. and only got 4 of what i needed.. nuttin but money wasted .. right??

i'll be building this curcuit soon..

robbie

[NickZ]

   Robbie:
   I knew that the mention of fresh baked diodes would bring you out of your fox hole, or current hide out. Good to hear that you're going to take a whack at this.
   The company above, that the Pirate mentions does have the 1N34A, and at  50 cents each.
Not exactly next door to me, though.
   There is something special about this Cross Over circuit, it'sreally a feed back circuit. So I'm glad that you're in the line up. As we've been talking about the self runner, it's about time we did some about it.

   My led light indicator on the circuit is still on, now past midnight, voltage holding, but not going up.
                                                                                    Nick

[TinselKoala]

Ah.... I have actually had a voltage rise, or at least a stopped drop. I've been running continuously since the video posting, and as I noted before, at 1800 yesterday evening I was down to 1.323 volts. Now it has climbed to 1.324 volts, eleven hours later at 0500. Still the same 5mm green LED glowing as shown in the video, I haven't touched it except to disconnect the scope and meter and reconnect meter for readings.

But I want SuperCharging like gadgetmall!! 

Meanwhile I shot a video showing a practical application: Use of the basic JT as a transistor checker circuit. Nothing earthshaking, I just use the basic testbed to check a bunch of different NPN transistors like 2n3055, mje3055, tip31, 2n2369a, MPSA18, 2n3053. It's still uploading and I am trying a different codec so I don't know how it came out.