The Newmanry History

54F Page 359


Switches labelled + can be thrown (down only) to add one or more impulses

Imposes the conditions Q1 + Q2 + Q5 = . Q7 + Q8 = .

(c) Yes Not Switches

On the right half of the switch panel white lines are drawn: conditions

Switches situated on these lines modify the conditions which pass through

( . which means : condition is unchanged (yes)
(
( which means : condition in cancelled
(
{ x which means : condition is reversed (not)


The & + and red switches are described later: at present they are supposed

(d) & +

Two conditions reach this switch, from aa and bb.


& means both;

+ means both or neither.


It is intended for use with Q + switches

e.g. Q1 + Q2 + Q3 = . , Q8 + Q9 = . , + , means

( either Q1 + Q2 + Q3 = . and Q8 + Q9 = .
(
( or Q1 + Q2 + Q3 = x and Q8 + Q9 = x

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