Features: It is a dome-shaped glass shell, white ceramic base with four gold-plated pins, direct-heated oxide cathode, mesh plate and graphite plate triode.
Uses: Used for audio amplifier, output power is 8.5W.
Standard working conditions and parameters:
Heating voltage * …………………………………………………………………… 7.5V
Heating current ……………………………………………………………… 1.25A
Plate voltage ...... ……………………………………………………………… 450V
Gate voltage ** ……………………………………………………………… -84V
Gate voltage ** ……………………………………………………………… -82V
Plate current ……………………………………………………………… 55mA
Plate current …………………………………………………………………… 57mA
Magnification ... ……………………………………………………………… 3.8
Plate resistance ……………………………………………………………… 1800Ω
Gate current …………………………………………………………………… 0.05μA
* AC filament power supply or DC filament power supply
** The AC filament power grid or plate circuit is connected to the center of the filament transformer secondary, the DC filament power supply, and the power supply circuit of the grid anode is connected to the negative end of the filament.
Extreme working use value:
Maximum plate voltage ……………………………………………………………… 450V
Maximum plate power consumption ………………………………………… 25W
For delivery time:
Generally, we will dispatch the items within 7 days upon order confirmation; some items may need 15~21 days to get ready for delivery, then we will try our best to dispatch as soon as possible, or we will contact you and offer advice.
For Bulk order:
If you would like to place a bulk order, please contact us for better price and better delivery cost.
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