Because most soviet clone chips are new old stock (Over 30 years old in most cases), a little testing was in order. Therefore, I made the chip tester module below:
The Arduino Mega is a "generic" Chinese clone but it works all right. The last Zif socket (32 pins) is not yet installed because it is still in the mail. It should arrive shortly. I will have to test 32 pin chips when I start dealing with static RAM. I know this is not exactly "classic", according to my own definition, but I decided that using DRAM from the period (4164, 41256) would have really been too much of a hassle.
I am happy I made this tester because some batches of chips contained up to 25% duds.
If anyone is interested, I can publish the documentation for this tester here (Schematic, PCB and Arduino test programs).