Operating Systems > Not Quite Mainstream OSes

ZX Spectrum

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insomnia:

--- Quote from: BouncingAyatollah ---From Sinclair ZX Spectrum introduction

"3. A power supply. This converts mains electricity into the form that the ZX Spectrum uses. If you want to use your own power supply it should give 9 volts DC at 1.4 A unregulated."

I take no responsibility for melted rubber :)
--- End quote ---

THX!   :)
(only 9V and 1.4A!)

mobrien_12:

--- Quote from: insomnia --- THX!    :)
(only 9V and 1.4A!)
--- End quote ---

Just in case you didn't know... you can use a power supply with a higher rated current so long as the voltage is correct.  Too bad the article doesn't say what polarity you should use.  Is there something on the box that indicates which contact is positive and which is negative?

insomnia:

--- Quote from: mobrien_12 ---Just in case you didn't know... you can use a power supply with a higher rated current so long as the voltage is correct.  Too bad the article doesn't say what polarity you should use.  Is there something on the box that indicates which contact is positive and which is negative?
--- End quote ---

It doesn't  :(  .
Whould it be damaged if pick the wrong polarity(just for testing) ?

mobrien_12:
It depends on the piece of electronics.  I'd suspect the computer might be damaged by the wrong polarity.

Anyway, I looked this up on google for you.  It says the correct polarity.

http://www.old-computers.com/museum/computer.asp?c=223

insomnia:

--- Quote from: mobrien_12 ---It depends on the piece of electronics.  I'd suspect the computer might be damaged by the wrong polarity.

Anyway, I looked this up on google for you.  It says the correct polarity.

http://www.old-computers.com/museum/computer.asp?c=223
--- End quote ---

Thank you very much. :) :) :)  
This is a lot more safe than using a dice...  :rolleyes: :)    ;)

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