Remembering our discussions regarding oscilloscopes, I noticed a Tek 465 (not 465B) on ebay, opening at $50 with a $190 BIN. Item # 140447279201. (Note that the seller has only 9 feedback(s).) Here is another (an HP 1740A): 310246891019 I have no connection with either seller. Caveat emptor. Best regards, Charles