DIY Tesla Switch Guide

[pese]

not working !
you cant drive the transistors with about 1omA current  (1k resistor)
even you cant charge the elctrolydt condensor up ti unload this to drive the transistors no such way . even the transformers 8:1000 Ohm can never work. the whole device. is only "exerimental"..

Fin to learn somes from electronic , thats all

G Pese

[gyulasun]

...
Well, here it is - a modified diagram with the 1K resistor
and everything connected the way I'm picturing it ought to
be... looks good?
...

No, it is only "half good".   crowclaw meant the lower relay contact goes directly down to the negative battery polarity, ok?
The 1 kOhm and its connection is ok to the upper relay contact. The 12V goes directly to the timer input of the Tesla switch via the 1 kOhm and whenever the relay is fired, the timer input is connected to the negative polarty instead of the +12V. In your drawing the wire from the lower relay contact now goes to the 1000uF capacitor,  this is wrong, that wire should go to the GND instead of the cap.
This is what crowclaw suggested.

[crowclaw]

Hi Guy's

Has any body tried Ron Cole's circuit out for themselves yet or have any thoughts?
http://www.freeenergynews.com/Directory/Electromagnetic/TeslaSwitch/Tesla_Battery_Switch_PGFED.pdf
see page 12.

Just in the process of experimenting with it myself. I have three 18000uf 30v capacitors, a hefty bridge rectifier and a 55W 12 volt auto bulb. The battery is 1.7AH 12v gel cell. I am pulsing a relay from a sig gen with a variable output from 0.5Hz upwards with min 15%>85% mark space ratio.
Pulses on battery approx 15volts+ but tend to be a little unpredictable!!

[gyulasun]

Hi crowclaw,

Though I have been aware of the collection on Ron Cole's circuits, now that you mentioned it I recall an US patent (already referred to in this forum) which includes only 1 battery and two (super)capacitors and two or three DPDT switches and it claims the circuit more than doubles the run time for a load driven from the battery and the switched capacitors vs the battery alone.  See here:

http://www.google.com/patents/about?id=85R6AAAAEBAJ&dq=7085123 

and they have a patent application on a variant circuit too :

http://www.google.com/patents/about?id=wiWqAAAAEBAJ&dq=7085123

Unfortunately their circuit needs unipolar supercapacitors, not readily available?

rgds,  Gyula

[pese]

Unfortunately their circuit needs unipolar supercapacitors, not readily available?

rgds,  Gyula

NO PROBLEM.

I seen an lot of Application (Speaker-Systems) , in that was used (for Audio AC) 2 polarized Electrolydtics. , in serie with both neg connected . and 2 positiv leads as unpol.  lead connection.
(also all-in-one- unpolarized- Electrolydtics . from OEM are produced this way in ONE Tube ! 
(If you are "angry" , than you can shield each cap
with an additionally parallel diode.
G Pese