I have the following items for sale: Ten-Tec 206A Crystal Calibrator - NEW - In box & plastic wrap w/ instruction sheet, schematic, warranty, and warranty registration card. $30. Ten-Tec C21 - Ser.# 570-3218 - NEW - never on air! I bought in 1978. No box, manuals or warranty card. Can e-mail pictures on request. $250. Richard Butz KA7GIV (expired) rickbutz@nc.rr.com (919) 933-9840