Local Radio Shack had 3 sets, I took one, believing you never use the parts you have, always something you don't have. Radio Shack numbers are 276-1711 and 276-1712. Prices have gone up, one was 99 cents, the other 1.29. There are two more sets if anyone wants my version of cheap insurance...should be a little under $5 with shipping if you would like me to get them for you, tuck them in a little bubble mailer and get them on their way.