Product Overview
Unused Cetron CE-A59RX Octal Phototube for Bausch & Lomb Spectronic 20
The Cetron CE-A59RX is an octal phototube designed as a direct replacement for Bausch & Lomb Spectronic 20 spectrophotometers. It provides the sensitivity and reliability required for optical detection in classic laboratory instruments.
Produced in the mid-20th century, when American vacuum tube manufacturing set the global standard, this component embodies Cetron’s reputation for rugged and precise construction. Preserved in its original packaging, it is ready to continue its journey in a restoration project, educational demonstration, or collection.
Product Condition
Unused, New Old Stock. Stored in its original manufacturer packaging, which shows wear from long-term storage. The tube itself remains in excellent condition.
Product Overview
Cetron was a respected American vacuum tube manufacturer, supplying specialized components for scientific and industrial instruments. The CE-A59RX served as the detection element in the widely adopted Bausch & Lomb Spectronic 20, a mainstay in teaching labs and research facilities for decades.
Key Features
- Brand: Cetron
- Model: CE-A59RX
- Type: Octal-base phototube
- Designed for Bausch & Lomb Spectronic 20 spectrophotometers
- Glass vacuum tube construction
- High sensitivity to visible light
- Original manufacturer packaging included
Applications
- Restoration of Bausch & Lomb Spectronic 20 spectrophotometers
- Replacement part for vintage lab instruments
- Educational demonstrations of phototube detection
- Collecting vintage scientific instrumentation
- Prototype development in optical sensing
- Teaching labs covering analog optical measurement
Frequently Asked Questions
Is this phototube compatible with all Spectronic 20 models?
Yes, the CE-A59RX was designed as a replacement for Bausch & Lomb Spectronic 20 spectrophotometers.
What is the condition of this tube?
It is unused, New Old Stock, with only the packaging showing wear from long-term storage.
Does the tube show any signs of prior use?
No, the phototube is unused and intact from its original production run.
Can this be used in other optical projects?
Yes, while intended for the Spectronic 20, it can also serve in experiments or prototypes requiring a sensitive phototube.
Is the original packaging included?
Yes, it will be shipped in its original Cetron packaging.
This listing is for one Cetron CE-A59RX Octal Phototube in unused, New Old Stock condition as described above.
