The answer to this is there are none. The functions of your routers built in soft start and speed controls require full power to operate. You are limited to using these controls or facing an expensive repair which warranty will not cover.
When troubleshooting a device the most likely component to fail is an IC chip, fourth down the list is a switch. Chips are subject to damage from heat and vibration. Aftermarket speed controllers are larger and disipate heat better and since they are table mounted you also reduce the vibration they are subject to. This is why I prefer a simple on / off switch on my routers.
When troubleshooting a device the most likely component to fail is an IC chip, fourth down the list is a switch. Chips are subject to damage from heat and vibration. Aftermarket speed controllers are larger and disipate heat better and since they are table mounted you also reduce the vibration they are subject to. This is why I prefer a simple on / off switch on my routers.