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Combined lamps

Lecture



Combined lamp - an electronic lamp, which combines two and more lamps in one cylinder. Lamps containing three or more electrode systems in one cylinder are called compactrons, in fact, this is a micro tube assembly.

Combined (especially double) lamps are very common. The advantages of combined lamps are saving weight and dimensions, simplifying installation and saving power. However, the combined lamps are more difficult to manufacture, and their cost often exceeds the cost of two separate lamps.

Designed for frequency conversion with simultaneous automatic gain control, to amplify audio signals, and so on. Used in superheterodyne receivers, ULF, radios, and so on. Lamps work in any position. Available in glass finger design.

Examples of combined lamps made in the USSR / Russia

  • Double diodes 6H2P, 6H6S, 6H7B, 12H3S;
  • Double triodes 6Н1П, 6Н2П, 6Н3П, 6Н6П, 6Н23П, 6Н30П, 6Н8С, 6Н9С;
  • Triode-pentode 6F1P, 6F3P;
  • Triode-heptode 6I1P.

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Radio tubes and ion devices

Terms: Radio tubes and ion devices