Miracle Systems Floppy PSU

[Dave]

Given the floppies use only +5v, even a couple of good quality USB adaptors can be rigged to supply power for the floppies. All you'd need to do is disassemble them and use the knowledge you've already demonstrated

[RWAP]

As I said - if you want to keep to the Genuine Miracle systems solution - I can supply you with a psu from a miracle case here....

[bagpuss22]

OK,

I have had a look and 1 of the input AND 1 of the output windings are Open Circuit, so I would
say the transformer has gone.

I am a little confused as I am not sure if this PSU is supposed to supply +5v or +12v as the #
floppy drive takes both on its connector! Might lift the regulator and see what it is.

Anyway Rich, what would be the cost of a replacement?

Thanks

Russ

[RWAP]

OK,

I have had a look and 1 of the input AND 1 of the output windings are Open Circuit, so I would
say the transformer has gone.

I am a little confused as I am not sure if this PSU is supposed to supply +5v or +12v as the #
floppy drive takes both on its connector! Might lift the regulator and see what it is.

Anyway Rich, what would be the cost of a replacement?

Thanks

Russ

Ermm £10 plus postage

Rich

[bagpuss22]

OK,

Update from my last posting.

Input winding is definately O/C, output winding I am not too sure and will have to check again
tonight. I come to this conclusion as I see that the Floppy only required 5v dc (only states 5v as a supply on the case), therefore the 2 x 9v output windings are in parallel giving 9v and therefore the regulator woukld be a 7805.... Phew!

Anyway Rich, if you could let me know the total value of the unit + shipping, and maybe package it all together with my Psion Chess, then I can make you a payment to cover it.

Thanks

Russ

[vanpeebles]

Professor Yaffle would have fixed it for you

Psion Chess is a beast of game too!

[bagpuss22]

And the 'mice of the magic mouse organ!!!'

I know what you mean about Psion Chess, awesome game.

[RWAP]

PayPal invoice sent

[bagpuss22]

Invoice payed

[1024MAK]

Yes, if the drives only need +5V, the 7805 will supply them. This was my first thought, that the drives are single supply models. However, when I searched for information on them, I found a picture showing the model number and also showing the power requirements, which stated +5V and +12V. So it looks like both types were produced.

Mark