Overview
The Amperex 6GB5 / EL500 is a beam tetrode electron tube engineered as a power amplifier for audio and television applications. This beam pentode is intended for use as a line output tube in television receivers, though it is also valued for high-fidelity audio systems and vintage equipment restoration. The tube’s robust construction and proven performance make it a sought-after component among collectors and audio enthusiasts restoring classic electronics.
Key Features
- Maximum plate voltage of 450 volts with maximum plate dissipation of 25 watts
- Maximum grid dissipation of 7.5 watts
- Beam tetrode design for efficient power amplification
- Durable vintage component suitable for audio and television receiver repair
- New in original box condition
- Amperex manufacture from Holland — recognized for quality vacuum tube production
Technical Specifications
Key operational parameters for the 6GB5 / EL500 include plate dissipation limits and grid characteristics necessary for proper circuit design and tube selection. The tube operates at moderate voltage levels typical of mid-20th century audio and broadcast equipment. Refer to the tube’s published datasheet for detailed operating curves, biasing recommendations, and socket pinout configurations before installation.
Typical Applications
- Television receiver output and deflection circuits
- Audio amplifier power stages in hi-fi and vintage stereo equipment
- Guitar and tube amplifier restoration projects
- Vintage audio equipment restoration and repair
- Audio enthusiast upgrades and tube rolling experiments
Compatibility & Replacements
Compatible With
- Vintage television receivers with tube output stages
- Audio amplifiers designed for 6GB5 or EL500 beam tetrode output tubes
- Hi-fi and vintage stereo equipment from the 1950s–1970s era
- Guitar amplifiers using beam tetrode power tubes
- Classic radio and audio receiver restoration projects
Replaces / Drop-In Replacement For
Replaces 6GB5 or EL504, EL500 tube types. Always verify tube base compatibility and pinout configuration with your specific equipment’s schematic before installation. Some circuits may have different biasing or operating requirements.
Works With
- EL500 equivalents and 6GB5-A variants
- Equipment designed for Amperex or equivalent beam tetrode power tubes
- Vintage vacuum tube test equipment and tube testers
- Point-to-point wired and early PCB audio equipment
