Edsac Replica Data Repository

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Edsac Replica Project - Rack Layout - Rack R4,F4,R4

By clicking on the racks in the left column, you can see up to three racks side by side. Clicking additional ones discards those in the first displayed rack. Note that if it is necessary to swap chassis to a place already occupied you can use the Bench, which should always have at least one free 'shelf'.

Click on rack id to see other racks

Coffin1

Coffin2

Bench

Power

Rack R4

Click on chassis to see more details

Position Name type/id Status
14 Empty
13 Multiplier Support Unit 37/01 In Rack
12 Multiplier Tank Regen 01/15 In rack
11 Multiplicand Shifting Unit 36/01 In Rack
10 Multiplicand Tank Regen 01/06 In rack
9 Empty
8 Multiplicand Control Unit 35/01 In rack
7 TCT Regen 01/22 In rack
6 TCT Shifting Control 34/01 In rack
5 CCU V Rounding 49/01 In rack
4 Accumulator supportUnit 69/01 In Rack
3 CCU III Shifting Control 53/1 In rack
2 CCU II Mult Control 52/01 In rack
1 Empty
Rack Wiring (under development)

Rack F4

Click on chassis to see more details

Position Name type/id Status
14 Empty
13 Initial Orders Uniselectors 39/01 @F4:4
12 Empty
11 Initial Input Unit 1 56/01 Design
10 Initial Input Unit 2 60/01 Design
9 Manual Order Unit 54/01 Design
8 Paper Tape Unit 1 63/01 Design
7 Paper Tape Unit 2 64/01 Design
6 Printer Unit 1 65/01 Design
5 Printer Unit 2 66/01 Design
4 Printer Unit 3 67/01 Design
3 Empty
2 Empty
1 Empty
Rack Wiring (under development)

Rack R4

Page maintained by Bill Purvis
page last updated 5th December, 2020
no recent data updates