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811WA Tubes For Sale: 811WA Tube Specs, Data Sheet & Substitute Info

811WA tubes for sale

Looking for a high-quality transmitting vacuum tube that goes the distance? The 811WA tubes for sale from Penta Labs deliver exceptional performance and durability in even the most demanding RF and audio applications. Whether you need a new single unit or a bulk order, select your quantity below to get started—multi-pack discounts available.

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In Stock — Just a few left

Each 811WA tube for sale features gold-plated pins for improved conductivity, corrosion resistance, and long-term performance. These tubes are processed under full DC testing conditions and are hi-pot validated for increased stand-off voltage capacity, ensuring a reliable, high-performance 811WA replacement solution.

With their enhanced heat dissipation, structural durability, and voltage resilience, the 811WA is a true workhorse for professional and amateur use alike.

811WA Tube Specs

Below is a summary of the 811WA tube technical specifications for a quick technical overview. For full electrical data, dimensions, and ratings, refer to the data sheet download in the next section.

Specification	Details
Plate Dissipation (Max)	75 Watts
Filament Voltage	6.3 Volts
Filament Current	4 Amps
Maximum Plate Voltage	1500 Volts
Maximum Plate Current	150 mA
Output Power	Up to 55 Watts (typical application)
Base	Machined aluminum, Teflon wafer
Pins	Gold-plated
Cooling Enhancements	Finned plate for +30% dissipation
Insulation	Ceramic top cap to prevent leakage

Enhanced features:

Cooling fins on the plate increase dissipation by over 30% compared to standard types
Machined aluminum base with Teflon inserts increases mechanical stability
Gold-plated pins improve contact quality and resist corrosion
Hi-pot & DC tested at full electrical capacity
Ceramic insulator on the top cap minimizes voltage leakage risk

811WA Tube Data Sheet Download

Need in-depth specifications for engineering or replacement purposes? Download the complete 811WA tube data sheet using the link below. It includes full electrical ratings, dimensions, and detailed pinout information.

Download 811WA Tube Data Sheet

811WA Tube Substitute & Equivalent Information

The 811WA tubes are a high-dissipation, enhanced durability alternative to the standard 811A tube. While they are functionally compatible with any application that uses the 811A, the 811WA tube equivalent is mechanically and electrically superior:

How 811WA improves on the 811A:

Higher Plate Dissipation: The 811WA features added cooling fins for a 30% increase in thermal dissipation capacity—critical for continuous operation and amplifier longevity.
Improved Build Materials: While many 811A tubes use plastic bases and uncoated pins, the 811WA uses a machined aluminum base and gold-plated pins, offering superior heat performance and connection quality.
Leakage Prevention: A ceramic insulator on the anode cap reduces the risk of high-voltage arcing or leakage.
Greater Voltage Handling: Each tube is hi-pot tested and rated for higher stand-off voltages, giving added safety and performance headroom.

If you’re currently using the 811A and are seeking a performance upgrade or longer service life, the 811WA tube replacement is the best-in-class choice.

Not sure if this is the right option for your needs? Contact Pentalabs electron tube manufacturers, we'll be happy to help you.