1000 Hertz
Frequency Standard
Spark Gap
Transmitter
1927
RCA Model
17
Broadcast Radio
1907
Hand cranked
Telephone
Hewlett Packar
d HP200A
This is the product that
gave HP their first sale
to Walt Disney
1890 Circa -
Edison
Cylinder Player
V
olt meter
Hewlett Packard
HP3
5
First
Hand
-
held
Calculator
1977
Hewlett
Packark HP01
Calculator Watch
Freshman
Masterpiece Radio
1920_Ultra_Audion
Radio
1911 -
Victrola
Record Player
VV-III
1910 Desk
Telephone
