I see an economic diasater coming...

[triffid]

big m,I got to see those inverter plans because I used a different computer.I think a mechanical inverter is novel.I once made an interrupter which used a flashlight battery for power.I sent the interrupted current through a step up transformer and shocked myself several times that day.I guess the current is not squarewaved but close to it and messy.Your inverter reminded me of that device I made a long time ago.I used air as the medium but adding a capacitor to the points would have cleaned up the waveform.And less sparking would result.I used junk to make it so it didn't last too long.triffid

[the_big_m_in_ok]

big m,I got to see those inverter plans because I used a different computer.

Yeah, I borrow computers and they have .PDF compliers on the hard drive as a public service to free customers.  I download lots of wiring diagrams that way.

I think a mechanical inverter is novel.I once made an interrupter which used a flashlight battery for power.I sent the interrupted current through a step up transformer and shocked myself several times that day.I guess the current is not squarewaved but close to it and messy.

Here's hartiberlin's rendering:

http://overunity.com/index.php?topic=3111.0  ,  Reply #5

This should last until the relay points wear out.  However, he needs to wire the relay contacts through the coil so the current in the coil energizes it, thus breaking the circuit until the spring reconnects the contacts to complete the circuit again as a chattering 'square wave' response with a frequency of, say, 15-25 Hz.

Your inverter reminded me of that device I made a long time ago.I used air as the medium but adding a capacitor to the points would have cleaned up the waveform.And less sparking would result.I used junk to make it so it didn't last too long.triffid

I'll try to remember that about the capacitor.  I don't have a 'scope, so I'll have to take your word for it.  A diode between the relay and BEMF coil would take some voltage off the relay contacts.  They'd last longer, especially at relatively high voltage on the batterie(s).

--Lee

[triffid]

This guy made a boat out of cardboard .His method could be used to make a cardboard palace if one wanted it.So I hope to make at least one solar panel out of cardboard using some of these methods.triffid
http://www.instructables.com/id/How-to-build-a-cardboard-kayak-for-less-than-40/

[Master_T]

http://www.youtube.com/watch?v=eb1n1X0Oqdw

[the_big_m_in_ok]

This guy made a boat out of cardboard .His method could be used to make a cardboard palace if one wanted it.So I hope to make at least one solar panel out of cardboard using some of these methods.triffid
http://www.instructables.com/id/How-to-build-a-cardboard-kayak-for-less-than-40/

Be careful for rain, triffid.  I never hears of water repellent cardboard.
Wait, maybe I spoke too soon?

http://www.pat2pdf.org/patents/pat6794016.pdf

It might work after all, as long as way too much water doesn't flood your solar panel.

--Lee