Inspired by February’s “Tunggram Radio” ad, Abel Santoro senrt in this advertisement, clearly from the Hungarian arm of the company, for tungsram-filament light emitting monodes.
In this issue
- A Speculative Edison Triode
- The Technology Conundrum
- Brief History of the Incandescent Electric Lamp
- Tubes RCA Made in China
- RCA Views Telefunken 12AX7’s
- Rejuvenation of Vacuum Tubes
- Self-Service Tube Testers
- “Matched Pairs”
- The Ballest Resistor Situation
- 1940-41 Date Codes: Ken-Rad, Sylvania, Raytheon
- The Need for Critical Tube Testers
- How to Get 50 Watts Out of a 5-Watt Tube
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