Item: Sylvania EF50.
Description: The tube that helped to win the war. Absolutely NOS.
Intended as a VHF Amplifier in TVs. Also, wide band and measuring
amplifier tube. Clean pins, no rust base. Excellent example of EF 50 VT250.
There's an article about the EF50 on the net. Absolutely a piece of history
here. Not in your collection? Here's a great example.
Testing: Untested. No data available. Good filament.
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