4BQ7A Medium-Mu Twin Triode RF Amplifier Miniature Sylvania Electronic Vacuum Tube

This is an original Sylvania 4BQ7A Medium-Mu Twin Triode Electronic Tube. Typical use include direct-coupled cathode-drive IF amplifiers or television VHF tuner amplifiers. This tube also excels in push-pull cathode-drive RF amplifiers. Excellent for those antique radio restoration projects or to set up a private vacuum tube museum. A collector's special vacuum tube. It is new, unused, boxed, and kept for all these years in mint condition.

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HARD TO FIND - HISTORICAL TUBE Features: • 4BQ7A Medium-Mu Twin Triode Tube • MFG: Sylvania • RF Amplifier • Heater: 4.2 V, 0.6 A • Plate: 250 Vmax, 2 Wmax - Class A Each • Plate Current: 9 mAmax - Class A Each • Base: 9-pin miniature, all glass • High quality Made in USA • Tube Collector's Special Notes: • NOS - New Old Stock tube in original box • 1976 Price: $6.05 - Sylvania List - May 1, 1976 • Unused - Price: $30 - One available • S/H included within continental US

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