408A Western Electric Pentode Electron Tube High Frequency Oscillator Amplifier

This is an original Western Electric 408A seven pin miniature electronic HF pentode tube. This vacuum tube was developed to be used in low microphonic noise environments by Bell Telephone Laboratories for HF [High Frequency] and UHF [Ultra High Frequency] amplifier and oscillator applications. May be used for special purpose circuits, oscillators, RF amplifiers, circuit development, antique radio, television restoration projects or to set up a private vacuum tube museum. It is new, unused, OEM no-box electronic tube. Only one available.

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HARD TO FIND - HISTORICAL TUBE Features: • 408A HF Pentode Electronic Tube Ruggedized • MFG: Western Electric - for Bell Laboratories • HF and UHF Frequency Amplifier, Oscillator • Heater: 20 Vac-dc, 50 mA - Indirect • Plate Voltage: 180 Vmax • Plate Current: 18 mAmax, 1.7 Wmax • Base: 7-pin miniature, all glass • High quality Made in USA • Tube Collector's Special Find Notes: • New, unused, OEM tube - No box • Price: $20 - one available • S/H included within continental US

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• Only one item available unless otherwise indicated • Click the credit card pictures left to order • • E-Mails always answered unless return e-mail is blocked