Power Supplies - Printable Version

Power Supplies - Printable Version

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Power Supplies - Anthony B - 3rd-May-19

Now this will be interestin - the subject for the week is : POWER SUPPLIES

For track and otherwise. (I will get out my camera a little later to show mine.

PS - nothing to stop anyone to continue sharing on previous weeks subjects in their respective threads. Hope it will build databases in times to come Bigsmile

RE: Power Supplies - Gordon Steadman - 3rd-May-19

Oh boy!

As an ex interior designer, I, naturally, have designer dust.

This is a supply built by a friend of mine who is a hi-fi designer. No idea what the box was from but it's been 100% reliable and registers the ampage drawn as well as the volts. I've seen it registering 6 amps with one of the Muras. Copes with three lanes with fast cars with no problem.

The wiring is a temporary test that has remained temporary for two years now.

[attachment=1316]
[attachment=1317]

RE: Power Supplies - CMOTD - 3rd-May-19

Here's mine:
[attachment=1318]

Top one is is a cheap basic model just for tyre truer and motor running in.
Bottom ones are the track supply and an eBay bargain - £50 the pair all in. I think they are pushing £100 each retail. They are 2.5 amp regulated, more than ample for the cars I run. One for each lane so I can hot wire a plug and run a ghost car. They also have separate 12v and 5v connections for the lightbridge and pit garage lighting.

RE: Power Supplies - Gordon Steadman - 3rd-May-19

Regarding the above rat's nest, with the previous cheap supply, it started out reasonably neat. Just the first lane's power at this stage. It stayed that way for some time as typically, I spent quite a long time driving the working lane before knuckling down.

[attachment=1333]

RE: Power Supplies - Mr Modifier - 5th-May-19

I use this 5-15v 15A 200w PSU to power the track on my power modded C7042 APB - we use the same supply at my club.
[attachment=1349]
It handles a grid full of Slot.It orange cans with no problems on a 20m track. These were sourced from Pendles I think.

This is my bench PSU 0-30v 5A that I use to run in motors (it’s interesting to see the current draw change as the brushes get bedded-in) and I use it to power my set-up plate which is 10mm Perspex with a routed slot and copper rails with a stop fence so I can use the plate to true tyres on a mule chassis.

[attachment=1350]

The PSU is only a cheap unit from eBay but it seems to work well and the voltage can be very finely tuned.

RE: Power Supplies - Lloyd.L - 5th-May-19

The power supply I use for Little Monte and Little Snett:

[attachment=1355]

And the supplys that I use for the portable tracks:

[attachment=1356]

[attachment=1357]

Regards, Lloyd.

RE: Power Supplies - munter - 6th-May-19

My track power supply must be ten plus years old and still serving well except for a bung LED or is that LCD...40amps and on another shelf a 15amp machine for the Hudy and a powered board and an occaisional motor/chassis run up.
[Image: P1060006.jpg]

I can see Gordon runs at a higher voltage than I do which is interesting in itself.
Sometimes I turn the wick up but mostly find ten volts comfortable.

RE: Power Supplies - Gordon Steadman - 6th-May-19

I'm used to running cars that used to get that from car/truck batteries. I find the the modern RTRs are quite happy at that voltage provided the controller is of a high enough resistance - I use around 25ohms for them. 5 or 10ohms for the old cars.

Now, of course, with my new fangled Truspeed MT11, who knows what resistance it is? I just twiddle the knob until it feels about right. Suits my scientific approach to life Cool

RE: Power Supplies - woodcote - 6th-May-19

[attachment=1391]

It's certainly not my power supply of choice these days - in fact it sounded less than healthy the last time I sparked it up a few years ago... However, it's what powered all my childhood Scalextric racing in the 70s and 80s, plus my siblings' racing through the 60s. It did a fine job and weighs a ton too.

Nowadays, I use a variety of laptop power supplies for HO racing, the standard Scalextric 15V 4A units for digital and a half-decent Maplins bench top supply for running in motors and other bits & bobs.

RE: Power Supplies - Anthony B - 9th-May-19

I suppose I need to post before we do the change.

My Power supply is 'home made'. Well almost. I was asking what to use back in the day on SFI. And we had a bright chap say - why dont you use a computer powers supply.
How I asked - Take it out - join these two wires and add in an ammeter/voltmeter with a regulator.....

Pffft - really I though - me with 2 left hands ???? Well those simple instuctions worked and voila - it runs 2 cars, used as powersupply for my tyre truer, runs in cars and motors..... works well!!

[attachment=1409]