A wonderfully atmospheric survivor from the golden age of radio.
Believed to be a Hyvac Type 224 screen-grid vacuum tube based on the surviving Hyvac logo, five-pin base, top-cap connection and internal mesh construction. Exact tube number is no longer legible, so identification is presented as probable rather than guaranteed
This vintage 5-pin vacuum tube dates to approximately the 1920’s-1930s and features a large clear glass envelope, black base, metal top cap and striking cylindrical mesh electrode structure visible inside.
One of its best surviving details is the original paper service label adhered to the glass:
“This tube re-tested by West Coast Agencies Tacoma, Wash.”
The label also retains handwritten dealer/date markings, giving the tube a wonderful bit of authentic working history.
At approximately 4” high × 1” wide, this is a compact piece with a surprisingly sculptural presence. The clear glass, silvered interior and exposed mesh construction make it fascinating from every angle.
Originally made as an electronic component for early radio equipment, today it also makes an especially compelling vintage electronics collectible, scientific display object, curiosity cabinet piece, industrial accent, laboratory vignette or mad-scientist-inspired Halloween decoration.
Its authentic age and unusual internal architecture give it exactly the kind of mysterious laboratory character that works beautifully in a collected shelf display.
Identification
Object: Vacuum / radio tube
Pin configuration: 5-pin
Top connection: Metal top cap
Internal construction: Cylindrical mesh electrode assembly
Approximate era: 1930s
Service label: West Coast Agencies, Tacoma, Washington
Manufacturer / exact tube type: Unconfirmed from surviving markings
Measurements
Approx. 4” high × 1” wide
Weight: approx. 1.8 oz
Condition
Authentic vintage condition with age-related wear.
Glass remains intact with light surface marks, spotting and interior silvering consistent with age. Black base shows surface wear and faint hand-applied/aged markings. Metal pins and top cap show normal oxidation and patina.
Original West Coast Agencies, Tacoma, Washington retest label remains attached, with age toning, creasing, edge wear and handwritten markings.
A partial red-and-white decal remains near the upper glass.
Electrical functionality has not been tested. Sold as a vintage collectible/display object rather than as a guaranteed working electronic component.
Please review all photographs carefully, as they form an important part of the condition description.
Era
1930s
Style
Industrial, Scientific, Machine Age, Early Radio, Curiosity Cabinet, Oddities
