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All orders ship DDP (Delivery Duty Paid).

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  • No import taxes
  • No customs fees
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Green CRT Oscilloscope Tube 6LO1i with a 60mm (2.4-inch) diagonal

Made in USSR. New, Old Stock

Comes with the original matching tube socket included, making it ready for your DIY projects!

This high-quality Soviet-era 6LO1I (6ЛО1И) cathode-ray tube. Featuring a compact 43 × 53 mm rectangular screen with a 60mm (2.4-inch) diagonal and a vibrant green phosphor glow, it is a prized find for vintage electronics enthusiasts and DIY builders. With a total length of just 140 mm, this tube is exceptionally space-efficient, making it an excellent component for ham radio projects, custom test equipment, and compact desktop builds. It is particularly popular for creating unique, retro-futuristic oscilloscope clocks—including both digital layouts and creative vector-graphic clock faces that perfectly utilize its sharp, distinctive rectangular display geometry.

The base pinout diagram and full connection schematic can be found in the image gallery alongside the general views.

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Technical Data:

  • Filament voltage: 6.3 V
  • Filament current: 0.27 to 0.33 A
  • First anode voltage: 45 to 135 V
  • Second anode voltage: 1200 V
  • Cutoff voltage: -90 to -30 V
  • Maximum screen dimensions: 43 mm x 53 mm
  • Maximum tube length: 140 mm
  • Line Width (Center of Screen): max 0.4 mm
Maximum Ratings:
  • Filament voltage: 5.7 to 6.9 V
  • First anode voltage: 0 to 300 V
  • Second anode voltage: 600 to 1500 V
  • Heater-cathode voltage: -130 to 0 V
  • Control-grid voltage:  -125 to 0 V
  • Voltage between any plate and second anode: -450 to +450 V
  • Deflection plate to A2 voltage: ±450 V
  •  ax plate circuit impedance (50Hz): 2.0 MΩ

PRIMARY CONDITIONS OF OPERATION

• Operation of the CRT with two or more simultaneous maximum values is not permitted.

• CRT must be mounted in the apparatus with shock-absorbing padding.
Do not allow direct contact with the CRT bulb by metallic parts of the apparatus.
 
• During the development of electronic apparatus, it is recommended to provide automatic cutoff of the beam to prevent damage to the CRT when timebase is not operating (At power-on or in case of sweep failure).

• Electronic equipment should be protected against temporary CRT breakdowns that do not cause permanent failure.

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Shipping and Handing

Buyer pays fixed shipping costs including insurance for any country. Shipping costs for this item can be found in the section Shipping and Payments. This item will be shipped to you from Europe (Ukraine) by Registered Airmail after payment is received and verified.

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