!2v DC Power Supply required

[Peter749]

Having decided to use some Berko Signals on my layout they require a 12v DC Power Supply.

I looked thru this forum and a few suggestions were to use a Maplin item - but no loner available

 

My layout is DCC and I wish to keep the Points and Signal separate from each other.

 

Any suggestions please for something suitable

 

Peter

[Brian]

A 12volt regulated CCTV or LED power supply should be fine.  I use eBay mainly and here is a typical example Link to eBay sale  Cost depending on current output, but around £7ish

I would at the same time obtain a DC female connector 2.1mm from the same supplier.  Makes onward connection to the layout simple. 

[Peter749]

Thanks Brian - I had look in to that ebay link.

 

The best is 2Amp output and I wonder how many signals that might feed?

 

Peter

Edited September 24, 2021 by Peter749

[Brian]

Assuming each lit LED draws around 20 milliamp (0.02A) then a 2.0Amp PSU will light some 100 lit LEDs.  More if the LED current is reduced to 10ma by using a 1K (1000 Ohm) series resistor, Then your into 200 lit signals Max.

Note, around a10% headway should be allowed on the PSU, so I suggest 95 lit on a 1.0Amp and 180 lit on a 2.0Amp supply!  Do you have that many signals?? 

 

Go for the 2.0Amp PSU and you will have ample power for other things too! Buildings, Street and Platform LED lighting etc.

 

Edited to correct errors!

Edited September 24, 2021 by Brian

[Peter749]

19 hours ago, Brian said:

Go for the 2.0Amp PSU and you will have ample power for other things too! Buildings, Street and Platform LED lighting etc.

Thanks again Brian - Ordered on ebay

 

Peter