User Manuals, Instructions and Guides for HAMMARLUND products.

HAMMARLUND HQ-140-X Communications Receiver Instruction Manual

Learn how to operate and maintain the Hammarlund HQ-140-X Communications Receiver with this comprehensive instruction manual. Covering models 299 to 1494, the manual includes frequency coverage from 540 Kc to 31 Mc and selectivity to separate crowded signals. Discover the benefits of the patented Hammarlund crystal filter and stable beat frequency oscillator. Perfect for communications use and good fidelity music and voice reproduction.