IBM 1620 Manual page 3

See Core Storage
Section - Page 4-2
See MAR Section
Page 5-2
See
I/o
Section
1622 - Page 3-1 6
See Power Supply
Section - Page 6-2
See I/O Section
Typewriter - Page 3 - 2
See
I/o
Section
1621 - Page 3-10
See I/O Section
1624 - Page 3-1 5
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See General Trouble Shooting Section - Page 2-2
See Fortran Section - Page 7 - 2
1.2