FS: Nuvistor Items 1) RCA 6DS4 Nuvistor tube in a Philco box. Not sure if it's new but tests good. 2) Three Nuvistor sockets, new. 3) Two nuvistor heatsinks, push-on type. Will sell all of the above for $5.00 plus shipping Reply by e-mail to arrange purchase. 73 - Brian, AF4K