Joule Thief

[TheNOP]

@all

I know about zener diodes but not that much , so i wonder if you send lets say a 60 volts in a 6 volts zener , yes you get 6 volt out but what would happen to amps.?

Anyone has idea?

first, sorry if a disappeared for a while, had computer problem, dead mother board.

zener acte much like a variable resistor.
they do not limit the voltage at their "threshole" value per say.
they are usually used to sink the over voltage trough a resistor.

all zeners i have work with to date are only able to withstand miliwatts.

ex: 1n227  14.5 volts 400 miliwatts

real life values without sinking resistor :

at 10 volts input you get 1.8 volts output
at 15 volts input you get 3.4 volts output, diff of 11.6 volts
at 20 volts input you get 7.2 volts output, diff of 12.8 volts
at 25 volts input you get 11.6 volts output, diff of 13.4 volts

except for input values of less then the zener "threshole" value,
the voltage accross the zener will tend to stay near the zener "threshole" value.

note that in reverse i measure a drop of only .1 volts at the output for all input values.

[Mk1]

@all

My sunbeam works ?

@gadget

Yep hair clipper i estimated it at about 1200 feet of mag wire and the laminate core work real well, lets remember its a electromagnet that work from 120 volts ac .

it also great on my bedini , sine i have bi pole neo magnet disk it get 120 volts ac easy per coil , that is from one coil.

Also i have found some fm transmiter on toroids , hummm , some people wont like that. Air born electric current humm room thempeture super condutivity.

[innovation_station]

just finished the tiny jt indicator light and the on and off switch

this fits inside the aa supply holder ..  where the other battery should go

ist!

now i could wind a secondary ... on the tiny put a rectifier off it and a cap and feed this in with the in put of the big mk2

but i will keep it simple for now .. 


ist!

@mk1 but is that a aaa fugi board ... i can light cfl too ....  with other cam units ....  what is the voltage out ...  also looks like a heavy duty battery were mine was a cheepie ...

plus the transformer is much larger than the one on my fugi board ...

[Mk1]

first, sorry if a disappeared for a while, had computer problem, dead mother board.

zener acte much like a variable resistor.
they do not limit the voltage at their "threshole" value per say.
they are usually used to sink the over voltage trough a resistor.

all zeners i have work with to date are only able to withstand miliwatts.

ex: 1n227  14.5 volts 400 miliwatts

real life values without sinking resistor :

at 10 volts input you get 1.8 volts output
at 15 volts input you get 3.4 volts output, diff of 11.6 volts
at 20 volts input you get 7.2 volts output, diff of 12.8 volts
at 25 volts input you get 11.6 volts output, diff of 13.4 volts

except for input values of less then the zener "threshole" value,
the voltage accross the zener will tend to stay near the zener "threshole" value.

note that in reverse i measure a drop of only .1 volts at the output for all input values.

Thank for the answer , i got a 3 volt 1/2 watt zener , if i run from 100 v dc , What do you think , would this improve the amps.

[gadgetmall]

@all

My sunbeam works ?

@gadget

Yep hair clipper i estimated it at about 1200 feet and the laminate core work real well, lets remember its a electromagnet that work from 120 volts ac .

it also great on my bedini , sine i have bi pole neo magnet disk it get 120 volts ac easy per coil , that is from one coil.

Also i have found some fm transmiter on toroids , hummm , some people wont like that. Air born electric current humm room thempeture super condutivity.

Sweet ! . I have no idea why some work and some dont ?  Yea i see that coil is the stuff . it get more juice running the mags in from of it  and hardly no cog at all . Real Nice find . Hehe The Heck with em . I know those cfl bulbs have to produce Rf interference, Maybe thats why they are going total Digital on Tv  No more Vhf or uhf .. What in the world Does the FCC expect us to do with all those pocket tvs and crank emergency tvs . what a sham .. .

gadget ....