572B/T160L Matched Pair

The Penta Labs 572B / T160L is a robust and versatile power triode designed to elevate your ham radio experience. Whether you're building a powerful RF amplifier, a stable oscillator, or an audio frequency modulator, the 572B delivers exceptional performance and reliability. Its graphite anode construction ensures enhanced heat dissipation and longevity, making it an ideal choice for demanding ham radio applications.

As a direct replacement for the 811A, the 572B / T160Lseamlessly integrates into your existing setup while offering superior capabilities.  

Versatile Applications: Excel in RF amplification, oscillation, and audio modulation.   

Enhanced Reliability: Graphite anode for improved heat dissipation and extended lifespan.   

Direct Replacement: Seamlessly swap with 811A tubes.   

High Power Handling: Capable of handling substantial power levels for robust transmissions.

Exceptional Performance: Achieve optimal signal quality and clarity.

Filament Voltage: 6.3 Volts

Filament Current: 4.0 Amperes

Amplification Factor: 170

Direct Interelectrode Capacitances:

Grid to Plate: 6 pF

Grid to Filament: 5.9 pF

Plate to Filament: 0.8 pF

Socket: Medium 4-Pin

Dimensions:

Diameter (typical): 2.063 inches

Length (typical): 6.5 inches

Preserving the Legacy for Today's Innovator: The 572B / T160L isn't just a tube; it's a testament to the enduring power of thoughtful engineering. By honoring the original design principles while incorporating modern advancements, Penta Laboratories has created a tube that meets the demands of today's discerning creators and engineers.

Don't settle for inferior imitations. Invest in the Penta Laboratories 572B / T160L and experience the difference that a legacy of quality can make.