[SOLVED] Transformer Size question

Ok so here is my problem.

I have a transformer out of a practice amplifier that I got in Australia, I know the primary is intended for 220 volt. The secondary is center tapped.

I measured the secondary voltage with an input voltage of 123 volts which gave me a secondary voltage of 15 volts center taped with no load.

My question is this. I need to replace this transformer with a 117 volt primary equivalent. Would a suitable transformer with a 117 volt primary with a 24 vct be usable? The amp rating will likely be less than 1 amp, as this is for a small practice guitar amplifier.

Sorry if this sounds very basic, I just want to be able to use this 220 volt amplifier on 117 volt mains and replacing the transformer makes the most sense to me.

Thanks for any help! :wink:

You got it right, you need 117 to 24 transformer.
1A will be OK 'cause the max you can get on 4 ohm speaker is 16W.

Vbase said:

You got it right, you need 117 to 24 transformer.
1A will be OK 'cause the max you can get on 4 ohm speaker is 16W.

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Thank you for your confirmation. Haven't done this in a long time and wanted to be sure. :lol: