:: But I never used it because I didn't have a 10v power supply. =20
:: What would be the simplest way to get 10v?

This would do the job  http://futurlec.com/Mini_Power_Dual_12V.shtml   they=
=20
are in Australia and the prices are US$ . They are not fast on delivery=20
-upto 3 weeks. Closer to Finland is Conrad (Germany) who have various power=
=20
modules, but you'd need to buy two to get your +/- v.

The other option I suppose is to use something along the lines of  a 7810 +=
=20
7910  which are +10v/-10V regulators or a 9v version with a diode in the=20
earth pin, to raise the 9v 0v6 above earth.

Colin
--
cdb, colin@btech-online.co.uk on 5/10/2013
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