Up for sale here is this set of 3 replacement light bulbs for the Yamaha M-2 and M-4 amplifier power and speaker buttons. These are new bulbs to replace the original bulbs for the power button and speaker buttons ONLY.

These are top-quality bulbs, and are the exact same ones I use when I rebuild vintage gear. These are top-of-the-line lights--I love using them!

You will need a Philips screwdriver, soldering iron, solder, needlenose pliers, and wire cutters. 

US shipping and handling is $5, and international is $18, no matter what quantity you buy. All my small parts are set up for combined shipping, so just use the "add to cart" feature and then check out all at once, and it will combine shipping. If you have any questions, please ask.