The US 6812 Division Bombe Report Eastcote 1944 Page 24

Tony Sale's Codes and Ciphers

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- 19 - TOP SECRET-T



After getting on to the stibsidiary chain one letter on the same chain is coupled to a letter on another subsisliary chain, a letter on this chain is then coupled back to a letter on the main chain. which does not confirm.

I|A J|B H|L K|P ---- P|K F|R ---- R|F S|J

illegal contradiction, machine should not have stopped.

a fault on the machine. Inform Technician.


DOUBLE INPUT. SINGLE RELAY ON EACH CHAIN




With a double input job each chain has an input and each input has a relay,therefore each chain is checked aa though it were a separate chain.

I|A||F|E J|S||M|Z H|L||T|X K|Y||R|D

permissible

1 couple could be for each correct stop. chain printed.

1 letter on one chain is coupled to one on the other chain and gives a confirmation...

I|A||F|E J|S||M|Z H|L||T|X K|R||R|K

confirma- tion

one story for all letters printed (unless there is a legal contra- diction)

could be correct stop.





1 letter on each chain is coupled to the same letter off both chains.

I|A||F|E J|S||M|Z H|L||T|X K|C||R|C

legal contra- diction

one story for each chain printed

correct from M/C point of view.If legal contrndiction is on outlying link, could be correct, stop







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