Frequency mixer tubes

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  • Heating parameters: 1.2 to 1.4V
  • Heating parameters: 3V
  • Heating parameters: 4V
  • Heating parameters: 6.3V
  • Heating parameters: 8.5V
  • Heating parameters: 8V
  • Heating parameters: 12,6V
  • Heating parameters: 14V
  • Heating parameters: 21V