Spec Drawings - Robert M. Hadley Company, Inc.

Experienced Magnetic Specialists

During the company’s early years, we designed and built transformers and inductors for audio, industrial, radio and similar applications. We still have all of those build documents dating back to about 1933. 

If you have one of those transformers or inductors and want to know more about it, the link below provides access to our historic documents as a pdf file.