Quote:
Originally Posted by ms660
Ferrite.
|
Yes indeed.
Mullard use to produce Ferrite cores in a suitable shape and grade for making effective erase heads but the grade of Ferrite needed for record / play heads is different and needs to be extremely fine grain in order to obtain the very small gap required.
Philips (no doubt using Mullard Ferrite expertise) made range of Ferrite play and record heads with very good characteristics which they used on their own professional machines as well as selling on the open market. Unfortunately these ceased to be available at the exact moment that Leevers Rich decided to change over to them on a standard production basis......