Abstract: A rotary type television tuner includes a chassis and a channel changing shaft extending through the chassis and having an operating knob mounted on the front end thereof for rotating the shaft. The channel changing shaft is made of a synthetic resin reinforced with glass fiber and is circular in cross-section over the greater part, the knob mounting section being formed with a flat portion and having a cross-section that is nearly semicircular. The root of the flat portion of the knob mounting section is rounded. A reinforcing rod assembly comprising a reinforcing rod made of a metal and a reinforcing rod made of a rigid synthetic resin which are connected together as by threads is embedded in the channel changing shaft including its knob mounting section. The length of the reinforcing rod of metal is such that when it is assembled as the tuner, it extends from the front end nearly to the chassis plate.

Abstract: A universal television tuner knob is comprised of four simple readily assembled parts only one of which must be made of different sizes; the parts comprising a tuning shaft engageable sleeve, a channel indicator disc adapted to be mounted on said sleeve, finger manipulatable means formed integrally with the sleeve and means carried on said sleeve to engage the channel indicating disc in any one of thirteen angular positions whereby the disc may be positioned relative to the tuner shaft so that the indicator disc will properly indicate the channel on which the tuner is fixed.

Abstract: An electronic frequency indicator for an AM/FM receiver utilizing a plurality of light-emitting diodes. The intensity of the diodes is varied to achieve greater resolution for the number of diodes in the indicator.

Abstract: A channel indicator device for a television receiver set or the like, more particularly a channel indicator device for a click stop type UHF tuner such as one having 70 detents is disclosed, in which a knurled surface is formed on an inner surface of a tube of a channel digit indicator plate and a plurality of resilient members are mounted on a tubular shaft attached to an indicator shaft, the resilient members being formed such that the knurls are adapted to gear with said knurled surface, whereby the positional offset between the channel digit and a pointer may be readily adjusted.

Abstract: A compact dial indicator arrangement is provided for a UHF tuner of the type having a continuously variable main tuning shaft and a station selector shaft provided with detent means for establishing a separate detent position for each of the 70 television stations in the UHF band. An elongated strip of material bearing numbers corresponding to each one of the 70 UHF television stations is moved past a viewing position at which the selected channel numbers may be viewed by means interconnected with the detented selector shaft so that the number on the elongated strip corresponding to each stop position of the continuously variable main tuning shaft is automatically viewable at the viewing position in response to rotation of the selector shaft to each detented position thereof.