||Kitty Hawk, Topcat
Precision, Input Mode
||Scientific, 10 BCD digits,
exponent ±99, desktop calculator
with printer, Reverse Polish Notation
||224 program steps, labels A-E, a-e and 0-9, program editing.
||1.6. Identical to the HP-67.
||26 storage registers, 224
program steps, not permanent
||15 digit 7 segment red LED, two
digits reserved for mantissa and exponent sign, one digit occupied by
||Magnetic card reader, thermal
printer (paper part #82045A)
||1.7.1976 ($750) - 1.12.1984
||Large, special accu pack and
external HP power supply or DC 7.5V off-the-shelf power supply.
Warning: With no
battery pack installed the unit will seemingly work using an
off-the-shelf power supply. However, the printer will fail to operate.
Presumably, the battery charging circuitry inside the HP-97 does not
allow to draw enough current from the external power supply. Only an
installed battery pack can provide enough current.
The same applies to the HP-19C.
Owner's Handbook and programming Guide, March 1977 (PDF)
Journal, A Pair Of Program-Compatible Personal Programmable Calculators,
Nov 1976 (PDF)
||Length 22.5cm, Width cm, Height
||The HP-67 had the very same feature set
fitted into a handheld calculator (except for the printer of course).