Wanted processors and co-processors

I'm looking for rare chips (processors, co-processors) listed in the table below. In addition to them I'm looking for different kinds of processor samples: engineering samples, customer samples, mechanical samples, thermal samples and marketing samples (see the table below for more information). If you happened to have one or more processors or co-processors from my wanted list please contact me.

If you have any datasheets in electronic format, or if you have data books for you no longer need them please check my list of wanted datasheets.


Wanted: Rare microprocessors, co-processors and microcontrollers
Family Manufacturer and part number
4004 Intel MCS-4 set
National Semiconductor INS4004D in white ceramic package
National Semiconductor INS4004N (plastic package)
4040 Intel C4040
Intel C4040 ES
Intel D4040 without copyright line
Intel MCS-40 set
6502 MOS Technology 6502 or MCS6502 in white ceramic package
8008

Intel 8008
Intel 8008-1
Intel G8008
Intel M8008
Intel X8008
Intel 8008 or 8008-1 in plastic package
Intel 1820-1221
Microsystems International MF8008 (without suffix 'R')
Siemens SAB8008-1D

8080

Intel 8080 (part number without prefix)
Intel C8080
Intel C8008-8
Intel C8080C
Intel C8080C ES
Intel D8080
Intel MC8080
Intel MC8080A
Intel MC8080A/B
Microsystems International 8080
Mitsubishi M58710S
Siemens SAB8080-C
Siemens SAB8080A1C
Siemens SAB8080A2-C

8087 AMD 8087 (if it exists)
Cyrix 8087
Intel D8087-3
Intel D8087-4
IDT Winchip 3 Any speed
K6 Black top K6 processors - any speed
K6-2 (K6-3D) AMD K6-2/250
AMD K6-3D 250
Nx586 Nx586-P75
Nx586-P133
Nx586
Nx586 PF100-E/E
Nx586 PF110-E/D
Nx586 motherboard with Nx587 socket
Nx686 Nx686 any speed (with motherboard if possible)
Pentium Pentium 50 MHz (probably A80501-50)
Rise Technology MP6 II Any speed
Weitek 4167 Any speed, in original box
   
Wanted: Microprocessor, co-processor and microcontroller samples
Engineering sample Usually marked "engineering sample", "eng sample", "eng eval", "es", or "sample" on the chip top, and sometimes on the chip bottom. Some Intel 80486 and Intel Pentium processors are marked with "ES" on the bottom - these are not samples unless there is an "ES" marking on the top of the processor.
Mechanical sample Marked "mech sample" or "mechanical sample".
Customer sample Older Intel processors were stamped with "CS" on the top of the chip. The "CS" letters usually differ from other markings on the chip - they may have slightly different color and font.
Thermal sample Usually marked as "Thermal sample"
Marketing sample The processors that look similar to pictures in press releases and official product announcements. These usually have a nice looking company logo and/or product (family) name. Marketing samples don't have any specific information about the chip - speed, voltage, etc.

Please contact me if you have chips from the list above, or if have samples of any old microprocessors, microcontrollers or co-processors.
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