So I have to repair a Yamaha instrument that has its push switches
> worn out. The rubber dome switches are known as VE135700.
Googling "VE135700 switch" leads to the following thread
or
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which suggests that at least in 2004, that part was available from
also has the phone number for Yamaha USA, +1 (714) 522 9011, 08:30 to
17:00 California time (GMT-7). (The original poster wanted to repair a WX-11 wind controller, if that helps.)
Matt Roberds