Mechanical Television
CRT Receivers for Mechanical Transmissions
As early as the late 20s, experimentation was going on with the use of cathode ray tubes to display television images. Philo Farnsworth displayed a crude image in 1927, and Max Dieckerman did the same in 1928. By 1929 Vladimir Zwoykin, then with Westinghouse, was experimenting with CRT receivers. In the early 30s there were many CRT receiver designs:
| Harry Lubke, W6XAO |
| F. Kerkhof |
| Ediswan design - 1934 |
| Television wilth a Cathode Ray Tube - 1929 |
| Purdue University |
| RCA CRT receiver for 120 line experiments |
| Television Manufacturing Co. |
Popular Radio, May 1928
1931 Circuit diagram of a CRT receiver
Popular Science, March 1932