Tektronix made ICs from engineering parts stock
Specify in your order which part(s) and what quantity for each you want.
I will update the list after each sale.  
On the off chance two orders for the same part occur before I update the list I will refund your payment.

Tek part number 155-0009-00,  2 available
Tek part number 155-0011-00,  3 available
Tek part number 155-0015-01,  12 available
Tek part number 155-0017-00,  11 available
Tek part number 155-0019-00,  11 available
Tek part number 155-0020-00,  11 available
Tek part number 155-0025-00,  2 available
Tek part number 155-0026-00,  3 available
Tek part number 155-0121-00,  2 available
Tek part number 155-0145-00,  4 available
Tek part number 155-0151-00,  2 available
Tek part number 156-0259-00,  4 available