Some new photos of Walt

[hartiberlin]

Another pic

[hartiberlin]

Another pic

[hartiberlin]

Another pic

[hartiberlin]

Here in these pics you can see the difference in shortcircuit current and opencircuit
voltage between the Zamak ( chemalloy) and the new alloy from Walt.
(labeled: sall in the filename)
You see at the right the ampmeter and at the left the voltmeter.
If the shortcircuit current is measured the voltage is the
remaining voltage of the cell across the ampmeter.

So we can see, that his new alloy is a bit better than Zamak
as it has a higher shortcircuit current and also has a better
remaining voltage during shortcircuit.
Also we see, that the graphite cylinders are much worse, than
plate designs, cause they only deliver 80 mA in the same configuration !


Regards, Stefan.

[Kysmett]

Why is it that the cylyinder is worse than the plate?

It looked like there was more surface area in the cylinder.  Could it be that the current generated in the middle of the cylinder can not escape, except at the edges?  Or perhaps is it something more simple that I have overlooked?