Abstract :
The design features necessary for easy mass production of turret tuners to cover Bands I, II and III are surveyed. Inter-changeability of coils between different chassis is important. Lead inductance and self-capacitance of components must be kept small and constant. The problems of temperature compensation over the wide frequency ranges are considered. A system of testing which uses a central generator of ¿wobbulated¿ signals for the various bands is briefly described and details are given of methods of coil and chassis alignment.
