Haddon Transformers, Ltd.
27-37 Masons Ave., Wealdstone, Middlesex (1950)
Ruislip, Middlesex (1959)

Founded in 1948, Haddon Transformers (Middlesex, England) made waves in audio & beyond. By 1959, they'd opened a second factory & design department, likely for growth & product diversification.

Known for audio & power transformers, they also built custom units like a 1kW VLF transformer (1956).  While their closure date is unknown, Haddon's legacy lives on in the vintage equipment they powered.

Haddon Transformers Ltd.: Powering Audio and Beyond (1948-?)

Haddon Transformers Ltd., established in Middlesex, England, on July 28, 1948, carved a niche in the world of transformers. While the exact date of their closure remains unclear, their legacy lives on in the vintage equipment they helped power.

Founding and Early Growth (1948-1959):

The company was registered with E. J. Haddon and Jean A. Cooper as the first directors. Their initial focus seems to have been on audio transformers, catering to the growing demand for high-fidelity sound reproduction in the post-war era.

Expanding Expertise (1950s):

By September 1959, Haddon Transformers had expanded its operations significantly. The opening of a second factory and design department in Ruislip, Middlesex, suggests a period of growth and diversification. This move likely allowed them to increase production capacity and potentially explore new product lines.

Beyond Audio: Special Transformers (1956):

While audio transformers appear to have been a core product, Haddon Transformers also possessed the capability to manufacture custom transformers for specific applications. An example is a 1kW VLF (Very Low Frequency) transformer, operational from 6 to 2200 Hz, built in 1956. This demonstrates their ability to cater to specialized needs beyond the realm of consumer audio equipment. [1]

In 1968 they patented (3,395,335), a transformer having plural part primary and secondary windings.[2]

Unfortunately, information about Haddon Transformers Ltd. beyond the late 1960s is scarce and requires further research.

[1] Electronic Engineering May 1956, Page 224.
[2] Official Gazette of the United States Jul 30, 1968, Page 1275.