KARPEN PILE

[profitis]

A pendulum swinging an iron ball on a long thread near a switch-electromagnet just came to mind for demo.easy to adjust for timing.

[profitis]

Coat that palladium onto nickel foil for best results pomodoro.you may lose quite some power if you coat on copper family.

[profitis]

Coat Pd onto stainless steel shaving blades,another cheap option.make sure plating solution is acidified with ammonium chloride or dilute acids(acetic)

[pomodoro]

Tried the Pd/pt vs Ag with tetrasodium EDTA instead, to prevent the gradual loss of power, but deterioration of Ag surface Is visible - a gray film where immersed in electrolyte.. Same deal with conc. Ammonia.  I'm surprised as I thought these would keep surface clean but leave elemental silver alone.

[profitis]

Nooo pomodoro.NH3 and most amine compounds viscously attack silver and take it into solution.this is why they are used to clean silver,they strip the surface clean.forms complex silver-amines which then probably reacted with cathode H2 and partially reduced to grey Ag.use only KOH or NaOH or Na2CO3 in the silver cells.use etched silver not anodized-cathodized like we was doing before.youl get silver plating direct onto your palladium anode eventualy within the gadget if you use ammonia as electrolyte