HP HP-67 User Manual

Section 1
Getting Started
Your HP-67 is shipped fully assembled, including a battery. You can
begin using your calculator immediately by connecting the cord from
the ac adapter/recharger and plugging the charger into an ac outlet. If
you want to use your HP-67 on battery power alone, you should
charge the battery for 14 hours first. Whether you operate from battery
power or from power supplied by the charger, the battery pack must
always be in the calculator.
To begin:
Slide the W/PRGM-RUN switch wprem l[IRuN to RUN.
Slide the OFF-ON switch orr JlTI[Jon to ON.
Display
Numbers that you key into the calculator and intermediate and
final answers are always seen in the bright red display. When
you first turn the calculator ON, the display is set to
to show you that all zeros are present there.
Keyboard
Each key on the keyboard can perform as many as four dif-
ferent
functions.
One
function
is
indicated
on
the
flat
plane
of
the key face, while another is printed in black on the slanted
face
of
the
key.
A
third
and
a
fourth
function
may
be
indicated
Ey printed symbols in gold and blue, respectively, below the
ey.
There
are
three
prefix
keys,
£
,
&8
|
and
@8
.
By
pressing
one
of
these
prefix
keys
before
pressing
a
function
key,
you
select
the
function
printed
on
the
slanted
key
face
or
one
of
the
func-
tions
printed
in
gold
or
blue
below
the
function
key.
To
select
the
function
printed
on
the
flat
plane
of
a
function
key,
press
the
key.
27

HP HP-67 Specifications

General

Introduced	1976
Programming Steps	224
Memory Registers	26
Type	Programmable
Manufacturer	Hewlett-Packard (HP)
Display	LED (red)
Programming	Keystroke
Power	Rechargeable battery pack
Logic	RPN (Reverse Polish Notation)
Battery	Rechargeable battery pack