12B4: Difference between revisions
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[[File:Tek-585-psu-2.jpg|thumb|350px|right|parallel 12B4s (center left) as pass elements in [[585]] power supply]] | [[File:Tek-585-psu-2.jpg|thumb|350px|right|parallel 12B4s (center left) as pass elements in [[585]] power supply]] | ||
{{Vacuum Tube | |||
1000 V peak plate voltage, and and 105 mA peak cathode current | |Type=Triode | ||
|Number=12B4 | |||
|EuroNumber= | |||
|RussianNumber= | |||
|Part_nos= | |||
|Description=power triode | |||
|Used_in=126;551;555;513;581;585; | |||
|Designers= | |||
}} with a {{B9A base}}. It has 5.5 W maximum plate dissipation, 1000 V peak plate voltage, and and 105 mA peak cathode current. | |||
The 12B4 is used in the [[126]], [[551]], and [[555]], and as a pass tube in the power supply of the [[513]], [[581]] and [[585]]. | The 12B4 is used in the [[126]], [[551]], and [[555]], and as a pass tube in the power supply of the [[513]], [[581]] and [[585]]. | ||
Revision as of 15:14, 10 October 2021
The 12B4 is a power triode vacuum tube with a B9A (Noval) miniature 9-pin base. It has 5.5 W maximum plate dissipation, 1000 V peak plate voltage, and and 105 mA peak cathode current.
The 12B4 is used in the 126, 551, and 555, and as a pass tube in the power supply of the 513, 581 and 585.
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12B4 Tube
