| Vacuum Tubes |
1957 |
Encyclopedia Britannica Films |
|
16mm |
|
sound |
| The Photoelectric Effect |
1957 |
Encyclopedia Britannica Films |
12:00 |
16mm |
|
sound |
| Radar And Tv |
1957 |
Encyclopedia Britannica Films |
|
16mm |
|
sound |
| Oscillators, Amplifiers And Radio |
1957 |
Encyclopedia Britannica Films |
|
16mm |
|
sound |
| Geiger - Mueller And Scintillation Counters - Laboratory |
1957 |
Encyclopedia Britannica Films |
|
16mm |
|
sound |
| Electromagnetic Waves - Laboratory |
1957 |
Encyclopedia Britannica Films |
|
16mm |
|
sound |