A fine old WECo (pre Bell Labs) shot of a “tennis-ball” repeater tube. Source: Jerry Vanicek.
In this issue
- History and Development of the All-Metal Radio Tube
- Some Thoughts on Metal Tubes
- Crosley Declares in Favor of Metal Tubes
- Edison Lamp in Receiver
- The Hytron HY117
- “VEC”
- The WC-23
- Tube Failures in ENIAC
- Universal Service Calls
- Weird Tube of the Month: The RCA A109
- Soviet Era Amatuer Rig
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