14 Jan
2022
14 Jan
'22
3:59 p.m.
Jonathan & Herb, Thanks for clarifying. I knew the pin to pin spacing was .125” but I thought the Altair was the only system that used the narrow row spacing. I learned something today. Regards, Jeff On Fri, Jan 14, 2022 at 11:31 AM Jonathan Chapman via vcf-midatlantic < vcf-midatlantic@lists.vcfed.org> wrote:
It was my understanding that only the Altair backplane had a different row spacing for it's connectors. Everything that I have seen since (IMSAI, Ithaca, TEI, CompuPro, Cromemco) used the same .250 row spacing.
The Byte Shop BYT-8 and Polymorphic Poly-88 both use the narrower spacing too. I don't know if later Polymorphic systems do too. There are probably others. Haven't checked on my TDL stuff.
Thanks, Jonathan