Vacuum Tubes

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  1. National Electronics Inc - RL-6989-NE - Power tube. Life indicating.
    $195.00
    Power tube. Life indicating. Manufactures box is double marked 404745D. Dimensions: 2.126" D x 8-1/4" tall with (4) heavy spade terminals. Learn More
  2. National Electronics Inc - 6211 - Tube, vacuum. NIB.
    $4.50

    Tube, vacuum. Glass. Mount: PCB 9 pin or can be socketed. NIB. Made in the USA. Note: Untested. Sold as is.

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  3. National Electronics Inc - NL-840 - Nixie tubes. Military NSN 5960-00-306-4177.
    $39.00
    Nixie tubes. Military NSN 5960-00-306-4177. Package: 13 pin, glass tube. Learn More
  4. National Electronics - NL-610 - Tube, electron. NL-7723.
    $20.00
    Tube, electron. Rectifier tube. Base: 4 Pin. New. Note: Maybe tested, shows internal glass as partially blackened. NIB. Learn More
  5. National Electronics Inc - NL-716 - Tube, electron.
    $50.00
    Tube, electron. Quick heating thyratron. Application: timing and control. Base: 4 Pin male. Dimensions: 1.524" D x 3-9/16" long, plus contacts. Made in the USA Learn More
  6. National Electronics Inc - NL-649/5834 - Tube, electron.
    $50.00
    Tube, electron. Base: 4 Pin male. Dimensions: 1.525" D x 4-5/8" long, including base. Made in the USA. Learn More
  7. National Electronics Inc - NL-627 - Tube, electron. Recftifier tube, 20Amp DC.
    $225.00
    Tube, electron. Recftifier tube, 20Amp DC. For industrial power applications up to 250VDC. Mercury filled. Long life, and has the ability to stand high inverse voltage. Overall 12", including screw base. Huge and beautiful. Made in the USA. Learn More
  8. National Electronics Inc - NL-604/7015 - Tube, electron.
    $225.00
    Tube, electron. Full-wave rectifier. Mercury. 2.5Amp. 10Amp peak. Base: heavy 4 spade/fork terminals. Dimensions: 2.124" D x 6" long, plus base/contacts (7"). New. Note: In stock available today. Learn More
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