ZX81 power supply

[Federico Rivas]

I've got a ZX81 but I haven't the power supply. I am treying to use a
standard 9v one, but I don't know which pole of the conector is + and
which is -. Could anybody help me?

[kora...@gmail.com]

I'm sure this information is in the FAQ. The URL of the FAQ is also
in the FAQ. :)

Seriously, Google for "zx81 faq" and you should find this info.

[Sam Gillett]

"Federico Rivas" wrote ...

> I've got a ZX81 but I haven't the power supply. I am treying to use a
> standard 9v one, but I don't know which pole of the conector is + and which
> is -. Could anybody help me?

I found the following information on the worldofspectrum website:

<quote>

9. POWER SUPPLY

If you wish to use your own power supply with the ZX81, it should conform to
these specifications -

D.C. only -positive to the tip of the 3.5mm jack plug. Need not be regulated,
but should be well smoothed.

Voltage - between 12 volts maximum and about 8 volts minimum (depending on
smoothing) when on load.

Current - not less than 600mA, or 1 2A of the printer is to work from the
same supply.

</quote>

Hope that will answer your question.
--
Best regards,

Sam Gillett

Change is inevitable,
except from vending machines!

[Brian Gaff]

You can deduce this from the pcb in fact, as the shaft connection is quite
clearly earth.

Brian

--
Brian Gaff....Note, this account does not accept Bcc: email.
graphics are great, but the blind can't hear them
Email: bri...@blueyonder.co.uk
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