[sdiy] Javascript Muse

[m brandenberg]

On Thu, 7 Sep 2017, Donald Tillman wrote:

> How many shift register stages could you get in a chip in 1969?  Four?  Then you'd need 8 chips for the Muse shift register.  Was the 74164 8-bit shift register available?  Maybe not.  Judging from the board layout, those three 24-pin packages seem to provide 10-bits of shift register each.  I don't know what those could be.

10.  :-)  Those 3 large chips are 10-bit shift registers.  Markings
on the chips in my Muse suggest house markings so that's not promising.
But the functions will all be SSI-level.  Haven't checked voltage
levels but devices may not be TTL...

--
Monty Brandenberg