Joule Thief

[Pirate88179]

Crowclaw:

Very nice.  Thank you.

Bill

[xee2]

@ crowclaw

You have some very good posts. Thanks. Was the voltage in the scope shots across the collector-emitter?

[crowclaw]

@ crowclaw

You have some very good posts. Thanks. Was the voltage in the scope shots across the collector-emitter?

Hi xee2,
Thanks for your reply. Yes the scope shot was across the CE junction.
Regards Merv

[xee2]

@ crowclaw

Your scope shots are excellent. Would you be willing to post a dual trace shot with the CE on one channel and the voltage across the base resistor on the other channel? I do not have a scope so I can not do this, but I think it would be interesting.

[gadgetmall]

@all Friends and Experimenters
           Hi . a LOT has happened in the few weeks i have been away . First . My computer contracted the internet security 2010 red X virus and ate my hard drive up . I tried everything under the sun and i am a computer EXPERT ! It failed and eventually all the important system files files were infected and i ended up reinstalling Xp . well after three days the rex X came back and i ended up after a week of trying to save anything ,formated my 25 years worth of migrated information and lost everything the sad thing is i had most of it backed up on an external hard drive (rock usb 200gig ) and it will not turn on and does the deadly Click click click . dead backup  so all the address of the good people i saved to send boards out to are also on the list as well as everything except some email i synced on My moto q cell phone and the new u3 flash drive . .
I know this is off topic but i thought everyone deserved and explination as to why no boards have been sent . this is the first day i have been on the internet since the incidents . and it was all because i was trying to WIFI my computer connection to my dear Daughters Wii . I dropped the firewall for three hours and got RED X the other thing is we have been without power since friday . We were expecting a BIG snow friday . we woke up to nothing  and later on freezing rain and later on ICE STORM and Trees are falling on powerlines all on the east coast . My yard is a frozen icecicle . all the trees had one inch ice on them . so power is back on this morning and we await  another blackout tonight as the freeze does its thing  . Asia was SO upset that everyone got snow but us  
Ok on topic . Gl and i are still nailing a problem with the board for the Jt /bcap setup . it will eventually go into a recharge loop and drain the unit. While the other setup without any electronics continues to run now almost 2 months fro the same battery . I recycle the power on that one with the light bulb regulator . so after many reprograms of the PIC controler we are now at the stage where a few additions are necessary to make the controller work properly . I have not read any messages other than a few on this page so i see IST is acting up as usual . I hope he has got his stuff he begged me to buy for him . Mrmags helped him get the shipping . Ok well i'll send this post and then do a virus scan .. later guys . BTW I had every joule thief running for a few days now so at least we had GOOD light . including all the fuji cfls and Jeanna light i have not boxed up yet . take care  over and out .

Gadget