MT I Pulse Width Modulation (PWM) drive controller with Transistor braking.
This new version replaces the previous transistor versions CLUB MKI /MKII and the BP MKI with the same easy useage.
Simple intuitive controls on the MT I make it easy to use and quick to adapt to your racing style, car, and track conditions.
Slot Car Controller supplied with POSITIVE track wiring.
For wiring details click here
Features and operating guide:
Brake control:
(Turn Clockwise to increase Braking)
A single rotary control sets the braking strength and has a built-in hold circuit (similar to the PWM controller) to release the brakes once the car has slowed to a speed relative to the amount of braking you have selected. The useful feature of this design is that the motor drives the brake circuit in such a way that the faster the car is going, the harder the brakes are applied. As the car slows, the brakes are gradually released to give very balanced and predictable control. The brake and hold remain balanced to leave you free to race confidently.
Sensitivity control:
(Turn Clockwise to increase Sensitivity)
This adjusts the trigger wiper sensitivity to enable you to set the controller feel for any car or track condition. For those used to resistor controllers, it will feel as if the Ohms are adjustable from about 15 up to 70. There is a built-in CURVE control circuit (similar to the PWM controller) which works automatically together with the sensitivity adjustment to give quick and easy setttings. As the Sensitivity is turned up, so the initial start speed also rises slightly to match.
Optional Trigger return spring tension adjustment: (add to the basket when ordering)
- Under the Trigger is the adjustment Screw. It operates against a cam arm that pulls the return spring.
Turn clockwise to increase tension and anti-clockwise to reduce it
(you can see it work through the clear handle)
Power and Current Ratings:
- The Mosfet PWM drive will handle motor stall currents of about 8 amperes. (This is the high current used when the slot car is stationary and builds up to high speed in a short space of time.)
- The heat sink bracket and component ratings will allow an average of 3A thereafter for general racing.
There is a small heat sink to take away the slight heat build-up on the drive devices.
- There is an auto re-setting fuse in the power feed to the drive Mosfet that will cut the power if the average current use is too high for too long a period.
Maintenance:
- Once you feel a scratchy operation or can hear sqeaking then it is advisable to apply a small amount of switch Cleaner/Lubricant (such as Servisol Super 10) to the wiper element board. This will keep it smooth, light and maintain the contact integrity
- Be sure not to bend the cable at the exit of the handle. The wiring will break from metal fatigue after a while and cause intermittent operation. Wind the cable into a gentle coil and it will last.
The handle has a special No-Screw quick release terminal set to fit a new cable should the original one fail.
This cable is available as a spare from the web site under Spares.
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