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Just another resonant mot thread

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Mads Barnkob

Wed Jul 16 2008, 04:44PM

Registered Member #1403 Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968

Dr. Kilovolt wrote ...

MadsKaizer wrote ...

Just got a shipment of MO parts from a colleague, we got 24 MO at 2$ a piece, some where brand new but we salvaged it all anyway, he didnt want his share after a few experiments so now I have most of it.

I am open for suggestions, but limited by 230V / 10A or if I remove my oven I can get 230V / 16A

In the picture you can see 21 MOTs (12 are the same) and there is also 21 MOCs and about 12 diodes left, some where blown.

OMG.

I don't even want to know where did he get them. (but really, I do

) I can't even imagine what would be possible with that and a 400V 30A 3ph outlet

With 10A you cannot do much, I would suggest the standard "2 MOT 4 cap" resonant circuit.
Do you have access to a three phase outlet?

they are from a "recycling plant", its really just a container site for recycling, not the facility.

I have a 3phased 400v / 16A

also I am soon getting a 1,7kW frequency inverter to experiment with 3 or 6 mots connected in triangle, and output rectified.

Andyman

Wed Jul 16 2008, 04:58PM

Registered Member #1083 Joined: Mon Oct 29 2007, 06:16PM
Location: Upland, California
Posts: 256

WOW!! Thats a lot of MOTs! Where's Waldo?

Sorry, I just had to say it..

teslacoolguy

Wed Jul 16 2008, 10:52PM

Registered Member #1107 Joined: Thu Nov 08 2007, 10:09PM
Location:
Posts: 792

OH......... MY.

that is one heck of a mot collection you got there. Cant wait to see some of the stuff you make with them. 3 phase 400v jacoulbs ladder maybe?

Coronafix

Wed Jul 16 2008, 11:40PM

Registered Member #160 Joined: Mon Feb 13 2006, 02:07AM
Location: Melbourne, Australia
Posts: 938

That poor table!

Lakeowner

Thu Jul 17 2008, 11:49AM

Registered Member #1370 Joined: Mon Mar 03 2008, 09:01AM
Location: Finland
Posts: 56

I disassembled yesterday my tenth MO. Here at my summer cottage is a really good junkyard. I have taken 4 MOs and I may take as many as I want for 0$.

My aim is to make a star-star-coupled three-phase 12kV MOT stack for a DC resonant charging TC. I probably get soon a star-triangle-configuration 3~ pole pig which has 30 degree of phase shift. With it and the MOT stack I won't need any smoothing cap. 18 MOTs will be a great hilarity wired together and fed from 3x32A supply (230V region).

Edit: To stay in the topic: can't wait to test 4 MOT stack with the resonant cap...

RogerInOhio

Thu Jul 17 2008, 01:41PM

Registered Member #1034 Joined: Sat Sept 29 2007, 12:50PM
Location: Chillicothe, Ohio
Posts: 154

My aim is to make a star-star-coupled three-phase 12kV MOT stack for a DC resonant charging TC. I probably get soon a star-triangle-configuration 3~ pole pig which has 30 degree of phase shift. With it and the MOT stack I won't need any smoothing cap. 18 MOTs will be a great hilarity wired together and fed from 3x32A supply (230V region).

I have considered using two separate MOT stacks to drive a full wave voltage doubler so I could reduce the size of my smoothing capacitor but so far I haven't. Right now I am using a baby (5KVA) pole pig to drive a halve wave voltage doubler. With a really big soothing capacitor it would make a great photo flash power supply.

18 MOTs should give you plenty of power to work with !

quicksilver

Thu Jul 17 2008, 01:45PM

Registered Member #1408 Joined: Fri Mar 21 2008, 03:49PM
Location: Oracle, AZ
Posts: 679

MadsKaizer wrote ...

Just got a shipment of MO parts from a colleague, we got 24 MO at 2$ a piece, some where brand new but we salvaged it all anyway....

It looks like you have a pretty good start there! If you have several that have duplicates: THAT'S what you want to work with. Having several of the same component allows a lot of enjoyable experimentation. Use the less quality singulars as ballasts, etc. Try to remember what cap was sold with which MOT.
KEEP collecting! There will come a time when you have to get back to work/school - whatever and won't have the opportunity. You'll be glad you did put a good collection together when you're experiments are only limited by your imagination and not the hardware!

Kizmo

Thu Jul 17 2008, 07:23PM

Registered Member #599 Joined: Thu Mar 22 2007, 07:40PM
Location: Northern Finland, Rovaniemi
Posts: 624

Its good to live near recycling place

Dr. Dark Current

Thu Jul 17 2008, 07:55PM

Registered Member #152 Joined: Sun Feb 12 2006, 03:36PM
Location: Czech Rep.
Posts: 3384

How much do you guys dare to depress me.

Here I get anything from none to two microwaves a year

Mads Barnkob

Thu Jul 17 2008, 08:42PM

Registered Member #1403 Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968

Dr. Kilovolt wrote ...

How much do you guys dare to depress me.

Here I get anything from none to two microwaves a year

Just post a picture of your high current wall plugs to make me jealous, wish I had 3phased 63A but thats just a mere dream living in a apartment in the inner city :)

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