Electro Engineering Works E8126 Transformer 117V 270VA 1450-1800CT 60CPS

Electro Engineering Works E8126 Transformer 117V 270VA 1450-1800CT 60CPS

The Electro Engineering Works E8126 is a single-phase step-up power transformer rated at 270 VA with a 117V AC primary and a high-voltage center-tap secondary spanning 1450 to 1800 volts. Made by Electro Engineering Works of Oakland, California, this is a vintage open-frame chassis-mount transformer built for industrial and electronic equipment applications. The unit features a laminated silicon-steel core with terminal block connections on top and an integral steel mounting base.

Specifications & What's Included

• Manufacturer: Electro Engineering Works (Oakland 18, California, U.S.A.)
• Model / Part Number: E8126
• Type: Step-Up Power Transformer
• Power Rating: 270 VA
• Frequency: 60 CPS (60 Hz)
• Phase: Single Phase (1 PH)
• Primary Voltage: 117V AC
• Primary Current: 2.3 A
• Secondary Voltage: 1450–1800V CT (Center Tap)
• Secondary Current: 0.210 A / 300 mA
• Core Construction: Laminated steel, open-frame design
• Mounting: Chassis / panel mount via integral steel base plate
• Terminal Connections: Screw-type terminal block (top-mounted)
• Country of Manufacture: United States

Applications

Electro Engineering Works was a California-based manufacturer of specialty transformers serving the industrial, military, and electronics industries from the mid-20th century. This E8126 is a high-voltage step-up design, producing a 1450–1800V center-tap secondary from a standard 117V line — a configuration typical of power supplies for vacuum tube (valve) amplifiers, RF transmitters, and high-voltage test or instrumentation circuits from the 1940s through the 1960s. The center-tap secondary is characteristic of full-wave rectifier power supply designs used in tube-based electronics of that era: the CT connection serves as the DC return point for a pair of rectifier tubes, yielding a well-filtered high-voltage DC rail. These transformers are still sought by vintage tube audio and radio restorers, ham radio operators, and industrial equipment maintainers who need a period-correct or electrically equivalent replacement for aging power supply sections. The open-frame chassis-mount format fits directly into equipment chassis where the transformer bolts down to a sub-panel or base plate.