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Electronic Valve - Philips, Dual Diode, Type 1561, 1928-1932 Object Reg. No: ST 021548

Summary:
A high vacuum full-wave rectifier capable of delivering up to 120 mA,
4 volt directly heated cathode.
Manufactured by: Philips, Holland
Description:
Conical bulb on 4 pin UX style base, mounted on a wooden display block.
Discipline: Technology
Dimensions: 141 mm (Length), 56 mm (Diameter)

More information

Tagged with: thermionic electron valves
Themes this item is part of: Engineering Collection, Information & Communication Collection
Primary Classification: ELECTRONICS
Secondary Classification: Vacuum Technology
Tertiary Classification: rectification
Inscriptions: Bulb: Philips/Miniwatt/1561/Made in Holland
Block: (valve details)
Manufacturer: Philips, Holland, 1928-1932

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