Description
Compact Dual Triode for RF Applications
The Sylvania ECC85 is a miniature double triode vacuum tube designed for use in high-frequency circuits such as FM tuner front-ends and oscillator stages. It contains two matched triode sections in a single glass envelope, providing balanced signal processing and clear, low-noise amplification. Thanks to its compact design and precise electrical characteristics, the ECC85 remains a popular choice for vintage radio restorations and custom RF builds.
Consistent Gain and Oscillator Stability
Each triode section delivers steady gain with minimal distortion, supporting clear and stable frequency reception. The ECC85 performs well at VHF frequencies, maintaining strong signal integrity in tuner front-ends. Sylvania’s quality manufacturing reduces microphonics and internal capacitance, improving oscillator stability. Additionally, the tube withstands continuous operation without performance degradation. These features ensure dependable amplification and frequency control in sensitive RF applications.
Versatile Format and Compatibility
Featuring a 9-pin B9A base and slim glass envelope, the ECC85 fits compactly into chassis common in radios and test instruments. It serves as a direct replacement for other ECC85 types. Whether restoring vintage FM radios or building custom front-end circuits, the Sylvania ECC85 installs easily and performs reliably.
Trusted Sylvania Quality
Sylvania has a reputation for producing vacuum tubes with solid build quality, electrical consistency, and long service life. The ECC85 reflects these traits with durable internal components and tight manufacturing tolerances. It maintains stable gain and low noise through extended use and thermal cycling. Consequently, engineers and hobbyists trust this tube for quality RF applications.
Ideal for Vintage and Modern RF Designs
Whether repairing classic FM tuners or crafting boutique radio gear, the Sylvania ECC85 offers compact size, clean gain, and stable oscillator function. Choose this dual triode for smooth, low-noise amplification and reliable performance in high-frequency circuits.





Reviews
There are no reviews yet.