Hi Bill, It’s the standard crystal for an MC14411 baud rate generator. I use those chips on some of my boards, but my boards are designed for the small HC-49 crystal while this original SWTPC MP-A2 CPU board would look better with the large, old style, crystal. Bob
On Mar 31, 2021, at 8:41 PM, Bill Degnan via vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> wrote:
Bob, Just curious, is there something special about this crystal? I have two 18's, but no 1.8's. Bill
On Wed, Mar 31, 2021 at 3:18 PM Bob Applegate via vcf-midatlantic < vcf-midatlantic@lists.vcfed.org> wrote:
I’m building a vintage CPU board and want to get an old-school large crystal. HC-49s I’ve got, so I need one of the older style that are larger. Wire leads are preferable but beggars can’t be choosers.
If you have one and are willing to part with it, email me privately.
Thanks
Bob