On Wed, Aug 21, 2013 at 06:08:10PM -0000, wrezal wrote:
and still the correct polarity. It's very unlikely that a 300mA power supply
will even get it to light up the display.
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Gordonjcp MM0YEQ
> Just thought I would add the power supply I am using is: 300mA unregulated AC/DC adaptor. Also checked I was using the right polarity, which appeared to be working fine. Also works on other devices I have such as a small little casio keyboard and a bigger yamaha one.You need a minimum of a 1A power supply. More is fine, as long as it's still 9V
and still the correct polarity. It's very unlikely that a 300mA power supply
will even get it to light up the display.
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Gordonjcp MM0YEQ