TPU - Toroidal Power Unit - Replication attempts (With Iron Wire)

[hartiberlin]

Hi Mike,
looking forward to see the scopeshots.
If I get some free time next week I will also try a few
iron wire coils with pulses and will see, if I get some
unusual kicks or some Barkhausen noise at least...

[HMM]

Hey Stefan,

try this out, a circuit I use to see the kicks

Mike

[gn0stik]

Hey Mike, where are those screen shots mate?

[hartiberlin]

Hi Mike,
thanks for the picture diagramm.
what are the Relays exactly doing ?
Why use at all the NC ( not connected ?) pins of it ?

Do you just pulse the iron wire coil with 300 Volts DC ?

Do you use a bifilar iron coil, so no magnetic field inside the iron
wire coil or do you use it as a normal iron coil ?
What are you seeing on the scope ?
As you generate probably many sparks at the relay, it is
no wonder you are seeing kicks on the scope...
Better do it with transistor switching.
If you see with transistor or CMOS switching also multiple
"kicks", then you have something.

[HMM]

Hey Stefan,
I use the NC normally closed contacts for two things:
1. To operate the relay coils, When the 9vdc is applied through the NC contacts the relay coils will be energized opening the  normally closed contacts which instantly cuts the 9vdc going to the relay coils which again closes the NC contacts.  This puts the relays into oscillation, at 9 volts the 12v relays will oscillate very fast. the armature will not travel far enough to close the normally open NO contacts this is why,
2. I use the NC contacts to switch the 300v from the caps to the iron wire bifilar windings. I use high voltage pulses from a Bedini motor energizer to charge the capacitors to 300v and maintain this charge on the caps.  The relays will all oscillate (4 total) at slightly diffrent frequencies the circuit I drew up is the primary circuit for one of the bifilar windings. The on and off times are fast since the relays oscillate at slightly diffrent frequencies.  The bifliar windings are pulsed at random frequencies and phases.
Hope this is not to confusing.

ps:This could all add up to alot of noise on the scope as you pointed out.  The scope shows alot of little spikes constantly, and very large spikes intermittently.I am still trying to get a picture of this signal on the Oscilloscope to post.

Mike