Up for sale here is this set of 2 NOS vintage Cornell Dubilier Greenie capacitors. Each is marked .0056 uf 600v, and will test very close to that. These would make good subs for .0047 uf or .005 uf caps. 

These "Greenie" caps are incredible--they barely drift at all, usually just 0-10%, and with pretty much no leakage or ESR. They are great for use in amplifiers where you want something that can easily handle full voltage, and will work great in guitars as well.  Please see my pictures for details and sample test results.

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 capacitors and other vintage electronics listed--feel free to take a look!