Those sound like ram chip 4116, quite common once, and still available.
I have a couple dozen tested ones handy if you want them. (From Atari
800 16k ram modules). 250ns to 350ns, depending.
best,
Jeff
On Tue, 2020-10-27 at 12:00 -0500, cctalk-request at
classiccmp.org wrote:
Re: Next project: 11/24. Does it need memory?--Memory
sad!