This is the first time I have ever used a forum for anything so please bear with me if I'm wrong. To give a little background I'm a long time model aircraft builder/flyer and I'm having difficulty at the moment as my hearing is failing and I find it impossible to hear the countdown timer on my transmitter this is a small sounder built in that you can set for any time duration this bleeps at 1 minute and then counts down the last 10 seconds. My question is can I make a vibration device to retro fit so I can feel the timer though the body of the transmitter similar to a mobile phone. Can it be simply connected to the buzzer output. Does anyone have any experience of such a device and how to make and fit please.