4QD will be closed Monday and Tuesday, September 1st and 2nd.
4QD will be closed from midday Friday September 5th 2014, reopening Monday 15th.
4QD's battery motor speed controllers, described elsewhere on this site, are the power 'amplifier' alone. For a complete system you will also need to add hand controls and wiring.
Speed pot: this is always necessary but we have several choices varying from a simple rotary speed pot to twist grips, plunger pots (for foot control) and a finger-tip 'bicycle bell' style throttle.
On/off switch: is optional: it is often satisfactory to simply turn the speed control to zero but an extra switch gives added security. We offer toggles, rockers, push and key operated.
Reversing switch: only needed with a reversing controller but the controller needs something to enable the user to tell it which direction it should go. This is only a low current control signal so virtually any switch can be used: rocker and toggle are good for operation from a control panel but if you want you put a real gear stick on your child's car, try a reed switch.
Other controls: you can fit collision detectors, joysticks, battery condition indicators etc. Ask us if you want more help.
Power cable: is also available by the metre.
Control: connectors for controls should you wish to be able to dismantle your machine.
We offer a range of LED meters.
How to use this section of the site.
The index that follows will take you to the pages of the accessories listing. Not all items are yet linked - we are working on this site and links will appear as available.
On each page there is a selection of items - usually with a picture. Each item has a reference number. This is its part number which is listed on the price list and which should be used as your order code.
There are Tables on each page coloured as below. These have links to the Price list and an 'Add' link which adds the item to your shopping cart.
|Description||Order Code||Price List||Add to cart|
|Boxes, undrilled||Control boxes + leads||Connectors||Fuses|
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