This kit includes 27 capacitors and 14 transistors. The capacitors are 105° Nichicon PW, Panasonic FC, Nichicon KL, and Wima film caps, at the correct uf and the same or improved voltage ratings, and the transistors are the correct OnSemi and Toshiba subs for the originals. These are the same parts I use when I rebuild vintage gear.
I will include surprisingly well-written instructions, but this is at least mildly complicated, and you should know what you're doing and have a decent soldering iron and a dim-bulb tester with a 40W, 60W, or 100W incandescent bulb. This kit should fix most issues with the SR-303, but I would strongly recommend cleaning the controls with Deoxit D5 or a similar contact cleaner. I have a complete light kit for the SR-303 available here. Please see my pictures for details.
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.