[vcf-midatlantic] ID-ing Univac I tubes

Sentrytv sentrytv at yahoo.com
Tue Jul 27 19:57:34 UTC 2021

Link below
If I remember correctly the tubes were set at a certain voltage to “fire”with a certain type of gas inside.


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My extremely complicated, hand held electronic device.

> On Jul 27, 2021, at 2:22 PM, Bill Degnan via vcf-midatlantic <vcf-midatlantic at lists.vcfed.org> wrote:
> Hi,
> Does anyone know which tubes from this list:
> https://www.vintagecomputer.net/temp/UnivacI/UNIVAC-1_tube-types%20.png
> ....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

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