Up for sale here is this set of 5 new grain-of-wheat light bulbs. These are 6v (AC or DC) 70mA incandescent bulbs. The bulbs are 5mm in diameter. These are nice warm white light bulbs and would work great for you. Please see my pictures for details.

Specs:
Voltage: 6v AC/DC
Current Draw: 70mA

Color: Warm White
Bulb Length: 9mm

Diameter: 4.5mm

Wire length: 26mm

Polarity: Non-polar

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.

Looking for more parts? I have power switches, feet, pushbuttons, top case screws, bottom screws, faceplate screws, white LED fuse lamps, blue LED fuse lamps, 6.3v bi-pin bulbs, 8v bi-pin bulbs, 12v bi-pin bulbs, wired 8v 60ma bulbs, new power cords, new main capacitors for the Marantz 1060/2230, wired Pioneer speaker plug replacements, new 630v yellow film capacitors at 13 different values, a large variety of transistors for vintage stereo repair, and more. Just use "add to cart" on everything you want and then check out for combined shipping.