A compact, inexpensive A-C network analyzer

SINCE THE INTRODUCTION of the first a-c network analyzer in 1929, the number in use has risen to more than 25 at present. Although existing types of a-c boards have proved invaluable, a great need exists for a much more compact and less expensive board. To meet this need an a-c board has been designed and built which occupies a floor space of about 60 square feet, compared with about 700 square feet for a board of conventional design, and which can be built to sell for about 20 per cent of the cost of a board of conventional design.