Euro friendly power transformer [message #28812] |
Thu, 27 October 2022 03:37 ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
claussoegaard
Messages: 27 Registered: July 2022
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Junior Member |
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I own a Kustom K200A-2 head, which I love. I recently moved back home to Denmark where I'm from, and here we run on 230V. My amp will obviously work fine on a step-down transformer, but I plan to take this on the road with me and in studios and such, and lugging an extra step-down around with me isn't ideal. So if possible, I'd love to experiment with swapping out the US power transformer with something that'll work in the EU. Whether it just be a replacement with only a single primary for ~230V, or something with multiple primaries, doesn't matter.
I'm at a loss as to where to start looking for something like this, with specs and behaviors that would come close enough to the existing transformer. Any help, pointers, guidance would be greatly appreciated! Thanks!
Claus
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Re: Euro friendly power transformer [message #28817 is a reply to message #28812] |
Fri, 28 October 2022 05:59 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
stevem
Messages: 4768 Registered: June 2004 Location: NY
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Senior Member |
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Pleat, the Frank models and the A series run on 34 volts plus and minus.
Without going with a custom wound PT the closet you can get is 36.
This Hammond transformer is a little shy on the current needs of the amp and has a 7.3% regulation factor.
This means that under load the amp will then be running very close to the as built 34 volts.
My first pick out of these two would be the Hammond.
[Updated on: Fri, 28 October 2022 06:07] Report message to a moderator
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Re: Euro friendly power transformer [message #28864 is a reply to message #28812] |
Fri, 09 December 2022 12:12 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) |
claussoegaard
Messages: 27 Registered: July 2022
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Junior Member |
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I ended up opting for the "Hammond 1182P30". It supplies the correct AC voltage and after rectification I get +/- 40.5VDC. Close enough! Although the schematic says +/- 34VDC, I've seen elsewhere on this forum that's actually supposed to be 40. Works great! Making it fit was a little bit challenging, but eventually I found a good solution. The real test will be once I start cranking it and playing it a lot and seeing if the PT can keep on supplying enough amps. Time will tell.
But the conclusion is that to anyone looking for a replacement PT for a K200A-2 amp, the 1182P30 seems like a great one.
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