DC system power supply

[Tim Hale]

The Gaugemaster Wall Wart has given years of service but finally failed. Before spending another £30 on a WM3, are other devices available? Btw, the Gaugemaster warranty does not apply in this circumstance.

Most Wall Warts on eBay are 12-16VDC but I need 16VAC with 0.75A nominal output, I even tried the Power Supply Shop but unless it is for a laptop, they cannot supply anything.

Recommendations are eagerly sought.

Thank you

Tim

 

[Tim Hale]

Sorry but just as I pressed the post icon, this popped up on my FYP

1000ma (1a) 16v 16VA AC/AC (AC Output) Power Adaptor

Exactly what I was after at a lot less than Gaugemaster and their website is rather good.

Tim

 

[John_B]

I've got a Hornby C990 800mA. I think it was secondhand on eBay so don't know if it's a current product. Presumably Hornby do things that need an AC supply, so they may be worth investigating if anyone needs one. Mine is currently in a box with a Gaugemaster panel mount controller, but hasn't been tested yet.

 

[SandyBrook]

Going on a step from this query, I’ve an AMR hand held controller that I’d like to use,
I currently use a Gaugemaster hand held. Should the same power transformer ( one of GM’s own) work or do I need something different?
I’ve tried connecting the AMR but the red power overload light comes on.
Any bright ideas?

 

[John_B]

Going on a step from this query, I’ve an AMR hand held controller that I’d like to use,
I currently use a Gaugemaster hand held. Should the same power transformer ( one of GM’s own) work or do I need something different?
I’ve tried connecting the AMR but the red power overload light comes on.
Any bright ideas?

Does it need a DC or AC power supply? The Gaugemaster is supposed to use AC, but a DC supply should also work. If the AMR is designed to use a DC supply, connecting it to an AC supply may well have unfortunate and irreversible consequences in addition to not working!

12v DC power supplies are easy to find, but 16v AC aren't.

 

[Joe Keegan]

The AMR requires an A/C supply only as it has built in rectification for DC

Do not use a DC supply as it will not work

 

[SandyBrook]

The AMR requires an A/C supply only as it has built in rectification for DC

Do not use a DC supply as it will not work

Thanks for the info, it’s such a nice controller in the hand it seems a shame not to use it again if I can.

 

[jc2001]

The AMR requires an A/C supply only as it has built in rectification for DC

Do not use a DC supply as it will not work

A DC supply can usually power an AC device - the rectifier just sends all the power one way. I've powered a 5amp NCE Procab this way for years. It's the other way round that shouldn't be used.

John

 

[Phil O]

Hi John,

I bought a couple of transformers a few months ago, I will speak to the club treasurer and see who supplied them. I know that they were reasonably priced and the delivery was good.

 

[Joe Keegan]

Going on a step from this query, I’ve an AMR hand held controller that I’d like to use,
I currently use a Gaugemaster hand held. Should the same power transformer ( one of GM’s own) work or do I need something different?
I’ve tried connecting the AMR but the red power overload light comes on.
Any bright ideas?

Gaugemaster has a selection of two types of AC power units which are suitable for your AMR hand held controller depending on your budget. A couple of screen shots from Rails