What's the rarest or most unusual computer-related item do you own?

[COURYHOUSE at aol.com]

DIGITAL TRAINERS
 
TUBE TYPE - IBM Digital trainer -   uses  the earliest of  IBM plug in tube 
things that were in their commercial systytems
http://www.smecc.org/video/logic_5.gif
IF ANYONE CAN SHED LIGHT ON THIS IT WOULD BE  FANTASTIC!
 
SOLID STATE   -  DEC COMPUTER LAB  with the pdp-8 I  toggles... not  RARE  
but   is  cool!
 
RELAY - - MINIVAC 601 
 
COMPUTERS 

 
for  tube computer    - -  our  sage   stuff  also.
 
for solid state   -  some of  our  GE   Erma   material.
 
for mechanical analog  computer   -- some kid of weird  thing  with gears 
shafts , bellows and I think
this weird thing runs off compressed air. details  pending
 
for electronic analog computer - Syston Donner  with Tubes in  it not that  
RARE but  we  are proud of it! 
 
for calculators -   W.W. Salisbury's  HP 35 that he   used for Spiral 
Fusion Calculations
 
ACTIVE  DEVICES
 
Tubes- -  single Plate early Deforest Spherical Audion
 
Transistors - -  experimental and Pre-production  prototypes  ALL Bell 
Transistors  
 
 
DIGITAL TRAINERS
 
IBM Digital trainer -   uses  the earliest of IBM plug in  tube things that 
were in their commercial systems
http://www.smecc.org/video/logic_5.gif
IF ANYONE CAN SHED LIGHT ON THIS IT WOULD BE FANTASTIC!
Comes in a fitted  wood case with lots of plugable modules with tubes  and 
other  parts.
 
 
 
But  we  love all the  stuff!  Ed#  _www.smecc.org_ (http://www.smecc.org)  
 
 
 
In a message dated 1/10/2017 4:42:21 P.M. US Mountain Standard Time,  
mloewen at cpumagic.scol.pa.us writes:

On Tue,  10 Jan 2017, Andy Cloud wrote:

> I thought this would be an  interesting question to ask around - What's 
the
> rarest or most unusual  computer-related item do you own?

64Kbit core plane from  an AN/FSQ-7 (SAGE)  computer:

http://q7.neurotica.com/Oldtech/SAGE/Coreplane-1L.jpg

...along with other Q7  parts:

http://q7.neurotica.com/Oldtech/SAGE/


Mike  Loewen                 mloewen at cpumagic.scol.pa.us
Old Technology          http://q7.neurotica.com/Oldtech/