|HP codename, series
||HP-33E: Sage, HP-33C: Sage-C, Spice
|Typ, Precision, Input mode
||Scientific, 10 BCD digits, exponent ±99, Reverse
||Yes, keystrokes, 49 steps, no instruction insertion or
deletion, no symbolic labels. Definitely one of the slowest calculators.
||8 memories (0-7), no permanent memory (HP-33E), permanent
||10 digit 7 segment red LED plus sign
|Original Pricing, Production
||HP-33E: 1.5.1978 ($100) - 1.12.1981 ($90)
HP-33C: 1.7.1979 ($120) - 1.7.1983 ($65)
||2xAA battery pack, alternatively with external HP power
supply or off-the-shelf DC 4.5V power supply.
WARNING: When the HP power
supply is used a rechargeable battery pack must be installed! When
using a regular 3V-4.5V DC power supply the battery pack can be removed.
||Length 14.1cm, Width 7.5cm, Height 2.9cm
HP-33E/33C Programmable Scientific Calculator Owner's Handbook and
Programming Guide, April 1979 (PDF)
Quick Reference Card, 1978 (PDF)
||The HP-33C was Hewlett Packard's last Spice model. One of the
drawbacks of this calculator is the Spice's notoriousely bad battery
power supply contacts: Even the shortest power interruption will clear
memory and all programs and data is lost! This is less of an issue with
programmable models like the HP-31E,
HP-37E and HP-38E. And as
as I know there's no E-version of the HP-34C.