Could be 25 or 30 MHz, IIRC.
The Plus/FatMac/128k Macs, if you were lucky, required only the "Killy Clip" Mod for installing an upgrade card. If you were unlucky, as I was, the Ceramic Packaged 68000 required you to solder the legs of a 68k "socket" to the legs of said Ceramic Packaged Proc, fairly straightforward, but with the soldering skills I had back in the day . . .
. . . it was a fairly daunting prospect . . . :I
. . . so I chickened out and ordered a 128k MoBo from Shreve Systems . . . it had same freakin' ceramic Proc!
. . . so I got the job done, (on the 128k MoBo, of course!) it was F*U*G*L*Y, but it worked! ;D
I'm pretty sure the Killy Clip is still in what remains of my MacPartsHoard! [
] ]'>If so, I'll take some piccies for the Photography/Documentation Thread, I doubt if many of the younger comrades have ever seen this ingenious/elegant piece of off the shelf HackWare engineering . . .
. . . or in this era of microscopic SMT, I wonder if some of them have ever even seen a freakin' socket for that matter! :?:
< wonders if he's still got that stock FatMac MoBo lurkin' somewhere amongst the toy boxes? >