Up for sale here is this NOS vintage Sylvania 1N81 diode. This is probably from the 1950s or 1960s, and is guaranteed to work. 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.

I have more diodes and other vintage electronics listed--feel free to take a look!