On Monday, April 23, 2018 at 10:34:29 AM UTC-7, gregebert wrote:
 

> ... I'm unsure about the orientation of the display vs the tube pins.
>
>
Go to page 4 of the following document:

 https://threeneurons.files.wordpress.com/2015/05/iee_nimo808.pdf 
<https://threeneurons.files.wordpress.com/2015/05/iee_nimo808.pdf>

The anode "nib", is 18 degrees off of pin 12, making pin 11 roughly 9.7 
degrees off of dead top center. The "Compactron" base has 27.7 degree 
spacing between pins, according to all documents that I could find.

>From the tubes I have, the "nib" is top dead center. See the following 
photo:

<https://threeneurons.files.wordpress.com/2018/04/nimo_alignment01.jpg>

Look at the internal structure. The nib seems centered within it. But the 
digits seem offset laterally:

<https://threeneurons.files.wordpress.com/2018/04/nimo_alignment02.jpg>

 


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