The US 6812 Division Bombe Report Eastcote 1944 Page 28

Tony Sale's Codes and Ciphers

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- 23 - TOP SECRET-T



2 letters on the main chain are coupled to 2 letters on The auxil- isry chain, itich gives a confirmation on 1 letter but a contradic- tion on the other letter on either relay.

I M H L J W K F --------- M 0 M Y F K F X

illegal contradiction. M/C should not stop

a fault on the M/C Inform Technician





2 letters on the main chain are coupled to 1 letter on The auxiliary chain which gives a con- firmation on 1 letter and let time round and on the other the 2nd time round.

I F H L J X K F ------- M Y M W F I F K

stop.

correct from M/C point of view, but could be the right stop if either main chain letters were on out-lying link.





2 letters on the main chain are coupled to one letter on the awafliary chain which does not give a con- firmation on both letters on the auxiliary chain.

I F H L J X K F ------- M Y M F F I F T

illegal contradic- tion. M/C should not stop.

a fault on the M/C. Inform Technician.





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