circuit
1970s
13182_22861_electronics6
Close ups of microelectronics. Diagrams of an integrated circuits. A…
1950s
13169_10683_long_range_radio
New Jersey: WS of a building. Men sit at giant radio transmitters. A…
1950s
13168_10677_election_day1
New York, Election Day. People entering pretty Victorian building to…
1950s
8403_electrical_experiment2
A boy and a girl stand in front of a chalkboard. The boy rubs a small…
1950s
8403_electrical_experiment1
A man and a little girl walk into a room and sit behind a table. The…