Joule Thief

[the_big_m_in_ok]

... They are actually known as carpenter bees because they drill a perfectly round hole into wood and make a nest there.
Me?  I am taking no chances on one being male or female...if I walk outside and one bounces off of my head, the battle begins.
Bill

I think they're called something like that in Tucson, as well.

As for using a JT for a bug zapper, wouldn't strong current be as important as high voltage?  Or else the JT merely act like a Van De Graaff generator you can touch harmlessly?

For enough current, more input voltage or more coil turns---or both---might be required.

--Lee

[Pirate88179]

Lee:

I did not make this.  I got it from Harbor Freight for $2.00.  It puts out 1,500 volts from 2 D cell bats.  It fries whatever it hits.  So, it works just fine.

I did not make this but, I have a second one that I took apart and will use in another device.

Bill

[the_big_m_in_ok]

Lee:
I did not make this.  I got it from Harbor Freight for $2.00.  It puts out 1,500 volts from 2 D cell bats.  It fries whatever it hits.  So, it works just fine.

I did not make this but, I have a second one that I took apart and will use in another device.
Bill

Good, I believe you.  1,500V with enough current might cook skin about as bad or worse than a Taser.  And Tasers are good for a lot more voltage.

I'll try and look out for burned out CFL's to take apart.  I have no idea what one looks like inside.  Yet.

However, I will say that older CRT TV picture tube output transformers nowadays have the distressing propensity to be soldered in their low voltage connections to a large PC board every time as a subsystem circuit.  Bummer.  Unless the solder is carefully cleaned off, the tranny is fairly useless.  The useful leads are too short at the very least.  This is from personal experience.

--Lee

[WayneJT]

Hi Guys
I thought I might share some information with you, I did not realise how many camera circuits there were out there, after dissecting the 8 cameras I got hold of from the generous people from the local photo lab, 6 Kodak all AA, 1 Fuji AAA and 1 unknown as there was no ID on the board, if anyone knows what cam 1 is please let me know, I think it may be my first AA fuji.
What I found interesting was that there seems to be a few different Kodak PCB's all slightly different from the others.

Thank you iWilby for the Kodak mod, I managed to get a 7watt CFL lit last night from your iWilby's Kodak mods pic on page 40 of this thread, yeah I'm way behind you guys, as I am having fun reading and playing around through this very long thread.
Opps my bad...2x Kodak funsaver cams are AAA

Wayne.

[Pirate88179]

Wayne:

Wow, quite a collection you have over there.  I think we would have to see the boards, both top and bottom to be able to make any determinations of them.  As you have read, there are several variations just among Fuji's and, now even among AA Fuji's.

There are a lot of smart folks reading this topic and, I think that as you dissect these cameras, take some photos and you might get some good advice.  Me?  I am only familiar with the Fuji AA including 2 different variations.  I still can't seem to get my AAA boards to work at all.

The good news is that you just got a lot of good industrial AA and AAA bats with your find.  In my experience, these industrials are way better than the ones we normally purchase.

Bill