– Filament: 6.3V, 4A
– Max anode voltage(Ua): 1250V
– Max anode current(Ia):125mA
– Max anode dissipation(Pa):40W
– Max grid current(Ig):50mA
– Amplification factor(μ):160 @ Ia=20mA
– Inter‑electrode capacitance: Input 5.5pF, Output 0.6pF
– Base: 4‑pin large vacuum tube base
– Application: RF oscillation, power amplification, modulation, audio amplifier
– Operating frequency derating: above 30MHz derate voltage & power
– Operating temperature:‑20℃ ~ +150℃
FU-811A VACCUM TUBE Specifications
| Filament | 6.3V, 4A |
|---|---|
| Max anode voltage(Ua) | 1250V |
| Max anode current(Ia) | 125mA |
| Max anode dissipation(Pa) | 40W |
| Max grid current(Ig) | 50mA |
| Amplification factor(μ) | 160 @ Ia=20mA |
| Inter‑electrode capacitance | Input 5.5pF, Output 0.6pF |
| Base | 4‑pin large vacuum tube base |
| Application | RF oscillation, power amplification, modulation, audio amplifier |
| Operating frequency derating | above 30MHz derate voltage & power |
| Operating temperature | ‑20℃ ~ +150℃ |
About the FU-811A VACCUM TUBE
The FU-811A VACCUM TUBE is a electrical products used in industrial automation, control and power systems. It is rated at Filament 6.3V, 4A, Max anode voltage(Ua) 1250V, Max anode current(Ia) 125mA. This electrical products is supplied as new, original industrial-grade stock. Each unit is identified by manufacturer part number FU-811A VACCUM TUBE for accurate procurement and cross-referencing.
Why source the FU-811A VACCUM TUBE from HDE123
- Verified part number: every FU-811A VACCUM TUBE is checked against its manufacturer specification before shipment.
- 11 confirmed technical parameters available on this page for engineering review.
- Global delivery with clear lead time and commercial invoice for B2B buyers.
- Fast B2B support: send us the equipment model or an existing part number and our engineers confirm compatibility before you order.
Ordering the FU-811A VACCUM TUBE
To order the FU-811A VACCUM TUBE, add it to your cart and complete checkout, or use the Request a Quote form for volume purchases and replacement / cross-reference enquiries. Lead time: typically 3–10 working days for in-stock items, subject to confirmation. Worldwide shipping is available and a commercial invoice is provided for customs.