The schematic of the unit.

Hi all,

Just done with the tuning coils for the magnetstromapparat, it does look similar and just as big as the one used in the first picture. Only one section of the unit to replicate (Rys.4). Back to the pencil and paper.

Take care,

Michel

EDIT : Double Post:

Nice pics Michelinho

Good luck with your replication!
Looks like a nice build you've got there.

I couldn't really make it out very well on your photos,
so I'll ask: did you use iron magnets and iron wire?

After all, Coler most likely used iron "permanent" magnets
since they were common in his day and things like neodymium
magnets weren't around yet. And obviously the magnets need
to be conductive, ergo: iron. Also, as Steven and I spoke about
recently in one of the other Coler threads here, there's a number
of magnet-coil-setups that share some characteristic elements,
like some Testatika parts for example, and they all use oldfashioned
iron magnets with coils of mostly iron wire around and attached to
the magnets. It would seem that this common element was most
likely also used by Coler. Hence the iron wire question.

Kind regards,
Koen

 Never have come across pure silver magnet steve. Silvered wire would be easier to solder if the wire were fine or thin.Many materials were in short supply during the war partly due to usage partly due to theft.
 I disagree that the wires were soldered to the magnets partly due to the level of difficulty partly due to it would just short it out in the end.Any build up of potential would result in heat which weaken the magnets.

Actually, we don't know that the testatika used iron wire for the wiring. That was a speculation on my part due to the similarity with Colers' stromerzeuger and to a lessor extent, the Roy Meyers device. The Roy Meyers device definately used iron wire (I just rechecked) and I thought the Stomerzeuger did too but I just checked again and it looks like I misremembered. The Brittish report says that silver wires were used. Are silver wires magnetizable?
-Steve
http://rimstar.org   http://wsminfo.org

    note: reference for the silver wire found while reading up on thermopile development prior to the same period .
  "German silver". German silver (better known nowadays as nickel silver) is the generic name for a range of bright silver-grey metal alloys, composed of copper, nickel and zinc; it contains no real silver

    note: reference for the silver wire found while reading up on thermopile development prior to the same period .
  "German silver". German silver (better known nowadays as nickel silver) is the generic name for a range of bright silver-grey metal alloys, composed of copper, nickel and zinc; it contains no real silver

That's correct. Although I wonder how relevant it is in this regard... After all, was it also not mentioned in the British report that
Coler built the versions they studied right there on the spot, mostly from materials obtained in Britain itself?
And what type of silver would be most common in post-war Britain, British "sterling" silver, or German nickel "silver"?
I would really expect the Brits to mean actual sterling type silver when they write down "silver", and not a nickel alloy
used by the former enemy...
But of course that's just my opinion, I am not certain, and it is equally well possible that they did indeed not use real silver
at all but rather a siver-coloured alloy such as nickel-zinc-copper alloy for example.

@Steven: Ok, sorry, it is indeed true that the use of iron wire in the Testatika was my speculation and not
an assertion made by Steven, nor actually based on much clear info. I do have a drawing by Geoff Egel if I'm
not mistaken that shows the Linden experiment and clearly mentions a length of iron wire coiled around the
horseshoe magnet, but I do not have any direct info from Baumann on that at all. There are still a few other
magnet-coil-cap setups around that do indicate the use of iron wire coiled around magnets though, and I
personally do think there are a few similarities there. I think it may be possible to use the magnetic resonance
of the iron to couple the spin of the magnet to the oscillations of electrons in the wire, and that this may be
what Coler and a few others did.
I am also still intrigued by Colers remark that the electron should not just be considered as a negative electrical
charge, but also as a south magnetic pole. Very unconventional but an interesting approach...