That doesn't mean it's not electronically controlled. These days, for that sort of device I would be surprised to find anything other than electronics in the speed control - simply because it's cheaper and simpler than other methods (such as moving brushgear, selecting different windings needing more brushes, etc).
What model do you have ?
It's a Dremmel 200,but Iv'e wired it as described by TTc and it works perfectly,great control and no more reaching up and down to switch it off(hangs up because it has flexi shaft fitted.)
If you need to find a tradesperson to get your job done, please try our local search below,
or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Please select a service and enter a location to continue...
Are you a trade or supplier? You can create your listing free at DIYnot Local