Tufnol Case Histories: Tufnol takes the strain

Even after having more than 2,000 holes drilled in it, this TUFNOL patch board is strong enough to stand the one-ton total thrust of the spring contacts. Heron brand TUFNOL was specified for the job by the Woden Transformer Co. Ltd. because it is light, yet mechanically strong, and at the same time a first class electrical insulator.

Even after having more than 2,000 holes drilled in it, this TUFNOL patch board is strong enough to stand the one-ton total thrust of the spring contacts. Heron brand TUFNOL was specified for the job by the Woden Transformer Co. Ltd. because it is light, yet mechanically strong, and at the same time a first class electrical insulator.