Karlsson KA2000 owners - help with power supply...

[GDR GDR]

hi there. I recently acquired a Karlsson KA2000 nixies clock, but it didn't come with a power plug/supply. the clock label states 9VAC 300mA 50/60Hz, which tells me I can just get any power plug of 9V and min 300mA (correct me if I'm wrong), but the question is the polarity of the plug.

hence, does anyone know if the correct polarity of  the plug? usually it seems that center would be the "+", but I dont want to try and find out...

thank you for your help.. cheers, m

[David Pye]

If it's ac it doesn't have a polarity per se.....

David

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[Adam Piórko]

AC = alternating current. No polarity. The power supply is probably a transformer-based power supply without a Gretzsch bridge.

Adam

[Robert]

Here’s the original power supply form my Karlsson

Rob

On 18 Nov 2023, at 20:07, GDR GDR <guid...@33rpm.com> wrote:

hi there. I recently acquired a Karlsson KA2000 nixies clock, but it didn't come with a power plug/supply. the clock label states 9VAC 300mA 50/60Hz, which tells me I can just get any power plug of 9V and min 300mA (correct me if I'm wrong), but the question is the polarity of the plug.

hence, does anyone know if the correct polarity of  the plug? usually it seems that center would be the "+", but I dont want to try and find out...

thank you for your help.. cheers, m

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[GDR GDR]

thank you for that! I'm rather clueless when it comes to these things, but this would seem that this not the "usual" AC/DC plug and some type of AC/AC converter? I'm  glad I asked as I was tempted to plug in a 9V 300mA AC/DC plug into it... 

thank you again!

[GDR GDR]

thank you! this makes more sense now ... 

[GDR GDR]

pardon my ignorance here, but would it be ok to plug this into a AC to AC adapter 9VAC output but with 1000mA ? meaning does the 300mA output matters or can I got higher? thank you!

On Saturday, November 18, 2023 at 2:32:00 PM UTC-6 Adam Piórko wrote:

[David Pye]

That's fine.   Having an adaptor that can supply more current is no problem.

David

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[GDR GDR]

thank you much! I found a 9VAC 500mA rated plug/transformer and now confident it should work... cheers!