Does it say DC-106A on your module?
 
I own a few DC-105 and DC106 modules (which I am unsure of their original 
numbering as it says "modified by Babcock Computers" on a sticker on most 
of them) plus similar modules from a frequency counter where the Nixie is 
placed on a separate board, you can see the counter close to the end of 
this webpage: 
http://www.radiomuseum.org/forum/the_trochotron_beam_switch_counter.html it 
is the FR-114. I also own the DC111A & B types plus the DC-113. There is 
some other information at Radiomuseum but that is mostly from printed 
documents and not many real photos. All of my modules work very well (even 
found a few unsoldered components which made the non working ones work 
again) and I have a bunch of spare Beam Switching and Beam-X tubes for 
them, there are enough modules to build a few clocks with them.
 
I have seen that Burroughs have edited the photos in their printed 
documentation to "simulate" one type of module but it is in fact another 
type (transistors have been removed on a DC-116 module to look like a 
DC-114 module). This is one reason why I am looking for true original 
photos and not just the ones found in datasheets and technical bulletins 
from Burroughs.
 
I would also like to have some information (schematics if possible) on the 
unit used in Xerox 2400 Photocopiers, you can see it here: 
http://www.decadecounter.com/vta/articleview.php?item=578 - I 
have contacted Xerox several times without finding anyone who could help me.
 
/Martin

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