Up for sale here is this NOS vintage Motorola MC1461R voltage regulator. This is guaranteed to work. I have two of these, one dated 1970 and one dated 1969. They are both pictured. Please see my pictures for details.
US shipping and handling is $6, and international is $20, 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 a number of other parts, collectibles, Magic cards, and vintage electronics listed--feel free to take a look!