I dug through about 4 moving boxes of reel tapes, and found 21 TK50 tapes (mix of some sources, some backups) and maybe a dozen QD6150 and 6250 tapes. All in nice plastic boxes. If you want a few, $1 each plus shipping, take them all for $20 and shipping. Location is Orange CA, but I will be in Palo Alto next Wed. and TRW this Sat.