Features: It is a dome-shaped glass bulb, four white-plated ceramic bases with gold-plated pins, a directly heated oxide cathode, and a graphite plate electrode triode.
Uses: used for audio amplifier, the output power is 22.5W.
Standard working status and parameters:
Heating voltage * ........................................................................ 5V
Heating current ..................................................................... 2.4A
Plate voltage ……………………………………………………………… 400V
Gate voltage ** ..................................................................- 70V
Plate resistance ..................................................................... 450ohms
Plate current ………………………………………………………………………… 120mA
Magnification ........................................................................ 3.85
Transconductance …………………………………………………………………… 8.5mA / V
Gate current ........................................................................ 0.05μA
Load resistance …………………………………………………………………… 2.0kohms
* AC filament power supply or DC filament power supply
** The AC filament power supply grid or plate circuit is connected to the secondary center of the filament transformer, the DC filament power supply, the grid anode power supply circuit is connected to the filament negative terminal.
Limit working value:
Maximum plate voltage …………………………………………………… 450V
Maximum plate power consumption ...................................................... 80W
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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