One of the tubes has a readable marking, 5823 (4th tube in the rightmost cluster) https://www.radiomuseum.org/tubes/tube_5823.html -----Original Message----- From: vcf-midatlantic <vcf-midatlantic-bounces@lists.vcfed.org> On Behalf Of Bill Degnan via vcf-midatlantic Sent: Tuesday, July 27, 2021 2:34 PM To: vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> Cc: Bill Degnan <billdegnan@gmail.com> Subject: Re: [vcf-midatlantic] ID-ing Univac I tubes I should add that I have narrowed the type(s) of tube(s) down to the 6AL5, 6BE6, 6AN5, 6AU6 or 4D32. Bill On Tue, Jul 27, 2021 at 2:22 PM Bill Degnan <billdegnan@gmail.com> wrote:
Hi,
Does anyone know which tubes from this list: https://www.vintagecomputer.net/temp/UnivacI/UNIVAC-1_tube-types%20.pn g
....Were installed on this module? https://www.vintagecomputer.net/temp/UnivacI/UNIVAC-1_A-35%20.png
They all appear to be the same type of tube. 7 pins and a center post.
(screenshots from a CHM video)
Thanks Bill