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Frank's electron Tube Data sheets IME26  

Instruction Manual
The internal.
Keyboard from below.
The Rear side.
The right side. Boards 1..17, Board 10 accommodates the core memory and is not plugged.
The left side. Boards 18..25 and board 33.
Wireing of boards 1..17.
Wireing of boards 18..25 and 33.
50101 board 1
bcd to decimal decoder and nixie driver circuit
50102 board 2
board 2 circuit
50103 board 3
50104 board 4
50105 board 5
50106 board 6
50107 board 7
50108 board 8
50107 board 9 (same as board 7)
Core Memory (board 10 position)
50111 board 11
50112 board 12
50112 board 13 (same as board 12)
50114 board 14
50115 board 15
50116 board 16
50117 board 17
50118 board 18
50119 board 19
50120 board 20
50121 board 21
50122 board 22
50123 board 23
50124 board 24
50125 board 25
50133 board 33
power supply circuit