I know there are several people who like Nixie tubes on this list, so: Links: http://www.ebay.com/itm/272572418459 http://www.ebay.com/itm/272572420943 http://www.ebay.com/itm/272572429330 Two sign indicators and one numeric tube. All tubes have been tested with a homebrew switchmode supply built to drive Nixie tubes. One of the sign tubes is obviously heavily used, the glass is darkened in the front. All three boards include a socket with the full pin count populated, which may actually be more valuable than the Nixie tubes, especially the sign tubes :) There's also a great mix of really old TTL on these boards. Some of it is packaged in blue plastic DIPs made by...Sprague! I didn't know they *made* ICs. Appears to be standard 7400 series TTL. The board with the numeric tube includes a white ceramic TDD1100 which appears to be compatible with the usual 7441 or 74141 Nixie driver ICs commonly found in 1970's equipment. Tubes are tested, control boards are not. Thanks, Jonathan