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Higher voltages equate to faster speeds, but also hotter motors, so it's always a good idea to stay within the recommended voltage range for the type of slot cars being raced. The list below describes the various uses for Ohm Controllers:. A regulated power supply eliminates power surges associated with other multi-lane power supplies. Normally, a DC motor will spin freely when power is removed. These replacement controllers are also quite a bit larger and will fit in your hand better than the smaller set controllers. If you are only going to buy one set of hand controllers to replace your boxed set controllers the 45 ohm rating is probably your best bet. Astron is a good source of high quality DC power supplies for HO slot car racing layouts. A good quality 45 ohm hand controller will work with just about all of the slot cars listed above except those with open or highly modified motors. Modern scale track manufactures all warn users to make sure the power pack is unplugged before inserting or removing a controller plug for this very same reason. A ampere DC power supply would be a good choice for a long 4-lane racing layout. Note: The resistors used in most of the better slot car hand controllers are easily replaced. Don't waste your time and money on lower-priced units that burn up and can't be easily repaired. You could even step on the handle without damaging it! Modern HO slot car motors run at 18 VDC, but with an adjustable power supply you can also reduce the voltage when young racers or novices are running. If your hand controller behaves more like an on-off switch than a variable throttle control you have selected a controller with too low of an impedance rating. Slot car tracks with lane lengths greater than about feet will need to have power applied at several locations. As you continue to squeeze the trigger the car should accelerate in a linear fashion throughout the controllers trigger range. Inadequate power distribution produces voltage drops around the circuit. This power supply would be ideal for large layouts or HO Slot Cars using hot armatures. Racers who skimp on adequate track power distribution will be disappointed when they have completed their track and find that cars slow dramatically on those sections of the race track farthest from the power taps. This power supply design uses a classic full wave diode bridge circuit D1 to rectify the transformer's secondary AC output T1. The chart below describes recommended hand controller impedance ratings for the various types of HO Slot Cars and motors currently available:. This power supply design uses only three 3 components available from Radio Shack's web site or your local Electronics Parts Store. It is the joints that rob your track of power not just the length. Parts Required. DC power supplies normally have two specifications, the output voltage and the output current. The red brake wire leading from the driver's station to the negative power rail in the illustration above is all that is required to add a motor braking circuit to your HO Slot Car Track. Powering each lane with 1 or 2 amperes is sufficient if power is distributed evenly. The Parma Economy hand controller uses a single-barrel wire-wound power resistor, and a completely enclosed controller body. Motor braking will allow your slot car to stop much more quickly. Parma is without question the premier manufacturer of after-market slot car hand controllers. It may be some time before Economy controllers are available again. Regardless of the power supply output, cars will slow down dramatically as they travel farther away from the power source. Parma's choice of the name "Economy" for this line of controllers is unfortunate. This is true, but an even better way of determining power terminal track spacing is to count track joints. The rail connections at the joints in plastic sectional track are the single largest factor contributing to voltage drops as the cars move farther and farther away from the power terminal track. You can always replace the current power resistor with a different rating if your tastes or needs change. Generally speaking, a 4-lane race track mounted on a 4x8 foot table would require 2 or 3 power taps, while a 4x12 foot table would probably require at least 4 or 5 taps. Most of the DC power supplies currently being manufactured provide only 12 to They will however work properly for larger and scale slot car tracks. Commercial after-market slot car hand controllers come in a variety of resistor sizes. Motor braking involves placing a shunt across the commutator poles to increase its turning resistance, and thus slowing its armature. Hand controllers built specifically for HO Slot Car Racing are normally rated at 60, 45 and 25 ohms of electrical resistance, or impedance to current flow. A better name would have been "Standard", as these are well made controls that will last a life-time, and should they ever need repair, replacement parts are readily available. A good rule of thumb to use when determining the size of the power supply required is to multiply the number of lanes by 1 ampere or more.

These after-market controllers are not only made much better than the small set controllers, they also include motor braking. The wide availability of best ho slot car power supply click should not be underestimated.

It's far more important to apply track power evenly around the racing circuit than it is to have a high-output power supply feeding a single set of power terminal tracks. The principle behind motor braking is quite simple actually. All of the amps in the world can't overcome this drop in voltage though.

Replacing the power supply with a unit producing higher amperage has very little effect on power distribution. A good power supply is a big investment. It includes a red brake wire just like the Parma.

Parma is currently out of stock on the trigger assembly required to build Economy controllers. You may find however that replacing the stock 60 ohm hand controllers with lower impedance units in the 45 ohm range makes for better car control.

While these controllers are very well made and can easily last a lifetime, they will from time to time require maintenance. All are well made and will easily stand up to many years of use.

The wall-outlet power pack supplied with most boxed racing sets is not sufficient for use on large table-mounted racing layouts. Normally, without motor braking, your slot car will continue to roll after power is removed from the motor, but with a motor braking circuit your slot car will stop much faster.

The Parma hand controls and parts described below can be purchased using the Add to Cart buttons displayed to the right of the various controls are parts. If you interesting.

pokerparty accept like to provide individual power supplies for each lane of your race track this simple design will produce 3. I've sold other less capable power supplies over the years, but now I stock only the best.

It is important to determine where power will be applied before you build your track and mount it permanently to a table. This will allow you to run with or without the benefits of motor braking.

It has a full sized handle that fits an adult's hand and is adjustable from ohms. The hand controllers supplied in most boxed race sets are rated at approximately 60 ohms. The handle is molded in tough Lexan, so if they do hit the floor they won't break.

Several models of the Parma Economy hand controller are currently available with the following power resistor impedance ratings:.

Applying power every 12 to 15 track joints will assure that your track is properly powered. See the Power section of this web site for more information about wiring a track for brakes. This is a well best ho slot car power supply hand controller and should stand up to many years of use.

The capacitor C1 smoothes DC ripple.

This should provide sufficient power with an adequate reserve. A 25 Ohm control will work best on home tracks in the 6x12 to 8x20 foot range. Count the joints for a single lane and then divide by 12 or 15 to get a better idea as to how many power taps your particular track design requires. Any slot car track can easily be wired for motor braking using the track wiring diagram below. Even larger and longer race tracks may need as many as 10 power taps. A properly selected hand controller should allow your slot car to slowly creep away when the trigger is squeezed just a fraction of an inch. The wiring diagram below illustrates a typical track wiring scheme for a simple 4-lane slot car track employing motor braking. Recommended power resistor impedances for scale racing differ slightly from HO slot cars. Astron power supplies are fully regulated. If you elect to install motor braking circuits on your slot car track you can easily defeat them by simply leaving the red brake wire on your hand controllers unconnected. The diagram below illustrates the plug wiring as used by both Scalextric Sport and Ninco for their set hand controls. You will find the effects of motor braking to be quite beneficial though, and will probably want to race with them in the circuit. Parma makes several different models of hand controllers from their entry level Economy line up to their TQ or Turbo Qualifier models. Modern HO slot car motors require at least 18 VDC, and 1 ampere or more of current for proper operation. A large voltmeter and ammeter on the front panel show the current output power status. Replacement parts for Parma hand controllers are inexpensive and widely available. This will allow you to drive deeper into a turn before slowing. Output voltage is adjustable from VDC. It is often said that power should be applied every 15 or 20 feet for an even power distribution. Investing in a good power supply will quickly pay for itself in motor savings alone. As the size of a track increases, i. Especially long layouts or very hot motor armatures may require more power, but amperes per lane should be sufficient for all but the most demanding racing situations. Some of the junk sold on eBay is just that junk. A good quality DC power supply is essential to safe, trouble-free racing and prolonged motor life. It and FLY Racing motors, while considered hotter, still work well with a 25 Ohm control on larger tracks. Power needs to be applied evenly around the entire race track. Parma has been building controllers for all scales of slot car racing for over 35 years.