Joule Ringer!

[TinselKoala]

Looks pretty good to me..... I'd mount the light fixture in the center of the yoke, that would look cool!

Meanwhile here's my latest neon rattler, using an inductor/transformer I pulled out of an old TV set. It has 9 turns on the primary. The secondaries are buried and are connected funny, I couldn't figure it out, so I just used a function generator to drive the primary and probed the secondary pins until I found the pair with the highest output voltage. I was able to light the NE-2 using only the output of the FG, once I found the 700kHz resonant frequency.  I'm getting very short spikes that go to 600 volts peak, from the AAA battery, which will run the NE-2 as long as the battery voltage is above 1.18 v.

I still haven't been able to get a CFL to light up using the AAA battery, though. Off to find more ferrite beads to play with now.

[Groundloop]

All,

I did add a germanium diode as shown in the drawing. I also added a small bias
current to the base of the resistor. Put a LED there also so that I got a nice ON indicator.

Adding the diode did lower the current usage from the batteries a little bit. The circuit
still maintain full brightness on my 12 Volt LED bulb.

GL.

[TinselKoala]

Joule Rattler powers a Ring Oscillator of NE-2s.

http://www.youtube.com/watch?v=6HqdlDAeRRA


Schematic for the ring oscillator below. You can extend to any odd number of stages. Flash rate is set by voltage and by the RC constant.

[gadgetmall]

Thats awesome guys . Nice Mods to a cool circuit . I have to yake it easy going to hospital for a while but i will be back some time . I still have a lot to do yet.


Tk . that circuit reminds me of something a guy gave me when i was 12 . It was a dark green rectangle wax battery from the military / He was a Navy radio guy and built it for me . It had a tube socket on it with a plug in circuit like yours with a blinking neon lamp . It blinked for years and years off that wax battery . Good memories.

Gadget

[Groundloop]

TK,

That was a really nice oscillator. :-)

Can't stop watching the blinking lights......................  :-)

GL.