The 100,000th TRS-80 Model 1 computer
TRS-80 Model 1 – Serial number 100,000 – auction| VintageComputer.ca
Noting that the Intel 4004 was normally sold as a chip set called the Intel MCS-4, the standard clock circuit used appears to be this (from this PDF, kindly provided by this vendor of MCS-4 test boards):| Made by Mikal
TRS-80 Model 1 – Serial number 100,000 – auction| VintageComputer.ca
