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  #1  
Old 12-17-2018, 09:35 AM
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eaddict eaddict is offline
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Default Looking for a new power source

I have a 78' 4 lane Scalextric track that is running off a Pyramid Adjustable power supply. I need more power but would also like to keep it a variable power supply. There are a lot of bench top power supplies out there in the wild. I would like to know what other folks use.

-Vince
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Old 12-17-2018, 10:24 AM
Mike- Mike- is offline
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Not variable...but I switched to (lead acid) battery (small tractor) power a few years back and will never go back to a store bought power supply.
Also, a battery has more than enough amperage in store for the wildest motors in all four lanes.

Mike
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Old 12-17-2018, 10:55 AM
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Quote:
Originally Posted by Mike- View Post
Not variable...but I switched to (lead acid) battery (small tractor) power a few years back and will never go back to a store bought power supply.
Also, a battery has more than enough amperage in store for the wildest motors in all four lanes.

Mike
How would you run Carrera cars then since they require 14.8V? Normal Ninco/Scalextric run at 12V
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Old 12-17-2018, 11:01 AM
Al's slotracing Al's slotracing is offline
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Hi Vince
A lack of power is quite often due to inadequate wiring / poor continuity between track sections. If that's the cause of the problem, a higher current power supply won't help.

How much power you need depends on the motors you use. You'll get better advice on what to buy if you can give some more information on what you use and what sort of Pyramid power supply you have
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Old 12-17-2018, 11:16 AM
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Quote:
Originally Posted by Al's slotracing View Post
Hi Vince
A lack of power is quite often due to inadequate wiring / poor continuity between track sections. If that's the cause of the problem, a higher current power supply won't help.

How much power you need depends on the motors you use. You'll get better advice on what to buy if you can give some more information on what you use and what sort of Pyramid power supply you have
My MFJ-4035MV maxes out at 13.8 V. Carrera need 14.8V. I have no issues running Slot-it, Scalextric, or Ninco at 12V. Carrera as 12V is unraceably slow.
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  #6  
Old 12-17-2018, 11:28 AM
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Take out the magnuts. ;-)
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Old 12-17-2018, 11:55 AM
Al's slotracing Al's slotracing is offline
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Quote:
Originally Posted by eaddict View Post
My MFJ-4035MV maxes out at 13.8 V. Carrera need 14.8V. I have no issues running Slot-it, Scalextric, or Ninco at 12V. Carrera as 12V is unraceably slow.
Thanks for that
For the cars you've mentioned, the current from your existing supply is overkill.

A unit that's widely used for slot car tracks in the USA (and other countries with a similar mains supply voltage) is the Pyramid PS26KX 22 Amp Power Supply - that's adjustable up to 15 volts.


You can spend more money to get more amps, but unless you are wanting to use higher current motors there's no point in spending more.
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  #8  
Old 12-18-2018, 07:10 AM
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I have that Pyramid 22 amp power supply as well, I mostly use it to power up a tire truing machine. The Pyramid is a linear power supply, those need a large expensive transformer. My track is powered by Mastech switch mode power supplies and those are lighter and cheaper than linear supplies. The Mastechs that I use are 0-30 volts, 20 amps. A 10 amp power supply should be enough for any motor that is used with home style 1/32nd cars. If your cars would be powered by commercial raceway 16D type motors you would need a lot more power.
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Old 12-27-2018, 06:46 PM
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I was wondering if a Carrera power supply actually put out 14.8 volts with a couple of cars running. The nameplate voltage does not mean a lot if a power supply is not regulated. In any case a 10 amp 0-18 volt power supply would do the trick. Here is one: http://mastechpowersupply.com/20v-10...lications.html
If you search the net you can find a similar unit for quite a bit less.
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  #10  
Old 12-28-2018, 06:27 AM
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All the Cincy guys use the MG Power supply. 5+ years, so far so good.

Bruce
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  #11  
Old 01-07-2019, 11:58 AM
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The MG is a great choice. Here is an article hot off of the presses! Comments would be welcome.
https://drive.google.com/file/d/118M...ew?usp=sharing

Last edited by RichD; 01-08-2019 at 10:53 AM.
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