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  Milton Bradley Phantom
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   Author  Topic: Milton Bradley Phantom  (Read 1301 times)
Piero
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Re:Milton Bradley Phantom
« on: December 15, 2007, 04:26AM »
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Quote from: Overtom on December 15, 2007, 04:00AM   

I found this diagram which I'd made a long time ago. Maybe it can be of help:



With best regards,

tom


Thanks wery well. This schema confirm my expectation about the tranfo connections. So, 6+6V (or 12V with medium take) seems to me little bit higher for the circuit needs. 12V*SQR(2) -1,4 as peek voltage after the internal rectifier is very close to the 16V limits of the internal capacitors. Also the 5V internal regulator (used for electronics, not for motors) don't need more than a double input voltage do do his job.  Anybody can use a tester to check the original equipment?
Thanks at all.
Piero
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Overtom
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Re:Milton Bradley Phantom
« Reply #1 on: December 15, 2007, 04:00AM »
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I found this diagram which I'd made a long time ago. Maybe it can be of help:



With best regards,

tom
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Larry71
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Re:Milton Bradley Phantom
« Reply #2 on: December 14, 2007, 09:15PM »
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Quote from: Piero on December 14, 2007, 03:27PM   

I've found one Milton Bradley Phantom chessboard (1983) without accessories (power adapter and magnetic pieces are missing).
I started to rebuild the power adapter. Looking internal circuits i think is a simple AC transformer with 4,5+4,5V outputs 1/1.5A) but if someone could give me better informations about it, I will appreciate very well...
I also need new pieces set. Were i can find compatible pieces? Is it possible to use/adapt other magnetic pieces? Thanks in advance.

Hi Piero,
I can help with the adaptor specifications, but as to the
pieces, sorry, can't help there.
  The adaptor output is:
    12 volt a/c
    1.7 amp
  all the best
  Larry
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Piero
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Milton Bradley Phantom
« Reply #3 on: December 14, 2007, 03:27PM »
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I've found one Milton Bradley Phantom chessboard (1983) without accessories (power adapter and magnetic pieces are missing).
I started to rebuild the power adapter. Looking internal circuits i think is a simple AC transformer with 4,5+4,5V outputs 1/1.5A) but if someone could give me better informations about it, I will appreciate very well...
I also need new pieces set. Were i can find compatible pieces? Is it possible to use/adapt other magnetic pieces? Thanks in advance.
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