3225302

Information

• Patent Grant
• 3225302

• References
• Source

• Patent Number

  3,225,302

• Date Filed

  Not available

• Date Issued

  Tuesday, December 21, 1965
  59 years ago

• CPC

  • H03F1/546 - Delaying application of anode power supply with respect to application of filament heating power supply
  • H03F1/544 - Protection of filaments

• US Classifications

  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
  • 219 - Electric heating
  • 315 - Electric lamp and discharge devices: systems