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Description
Part of Harold F. Elliott's invention, "a simple new radio clock and tuner designed to accommodate any desired schedule of programs from 5 stations, with automatic 'On', 'Off' and Tuning at any quarter hour throughout 24 hours." Figure 1 "illustrates how stations are set on the simplest 5 station model. The sectored rim surrounding the clock face is rotated to bring the desired station opposite the desired time and the station sector is then pushed outward as far as it will go. This sets a small stamped metal slider which operates a multi-leaf switch to route a circuit for tuning the desired station when the time arrives. All making and breaking of current is handled on a single pair of contacts which close for about ten seconds with quick make and break precisely at each quarter hour. Each of the station selecting sectors has a different outward travel. Stations may be indicated by numbers or by station letters. The slider assmbly rotates once in 24 hours and the position of each slider in its slot determines which function is performed when a given quarter hour arrives."
Type
image
Format
Black & White
Identifier
C71DBEAE-8C95-47F3-A471-063700405130 2003-36-445a, b
Subject
Clock radios (LCSH) Radio broadcasting Radio stations (LCSH) Radio--Receivers and reception (LCSH) Motorola, inc Photographs Automatic timers (LCSH) Stellner, Walter H Elliott, Harold F
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