
Raytheon
Raytheon 923 Gas Phototube Vacuum Tube
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The Raytheon 923 is a classic gas phototube vacuum tube designed for light detection and measurement applications. This vintage component features reliable photoemissive characteristics ideal for vintage audio equipment restoration, laboratory instrumentation, and specialized electronic projects. The 923 delivers consistent performance in low-light detection circuits and remains a sought-after tube for enthusiasts and technicians working with period-correct gear. Excellent condition and ready for immediate use in your restoration or experimental build.














