Note
Radio, Sep 1935, p. 32.
Three versions:
15 to 200 meters (20 to 1.5 MHz)
12 to 540 meters (25 MHz to 550 kHz
8 to 200 meters (37 to 1.5 MHz)
The model 302 preselector is available wired and housed in a metal cabinet with black crackle finish. There is also available a kit which includes antenna coil, RF coil, RF choke coil, switch and three dual trimmer condensers. In addition to increasing signal strength, the Miller pre-selector reduces both atmos-pheric disturbances and tube noises, it is said. The chassis layout has provision for self-contained power supply, relieving the receiver from the extra load.
Provision is also made to switch the antenna from the preselector to the receiver without disconnecting the antenna leads. The coils are designed to cover the full range of the high-frequency bands from 12–200 meters, and provision is made on the band switch to facilitate the incorporation of broadcast or long-wave coils if desired. The last position on the switch is the "antenna through" position, in which the antenna is coupled directly to the receiver.
The lid is hinged for ready access to tubes, while louvers on side and back provide ventilation.
References
Technical description. Radio Craft, Jan 1936, p. 412.
