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The transmitter was completely 'home brew', consisting of a metal 6L6 Franklin oscillator on 3.5 MHz followed by two more 6L6s doubling to 14 MHz. In the final amplifier stage Harry used a Telefunken pentode, the famous and very efficient RL12P35 which was used in the German tank transmitters in all stages, oscillator, P.A. and audio amplifier/suppressor grid modulator.

Some of the less sophisticated robots might pick up some chance phrase of conversation and interpret it as an order if left on audio. "Ben," said Betty, getting up to meet him, "you're late." Ben was too good a salesman to argue that. Instead, he took her in his arms and kissed her.

You can program it for up to a hundred selective sell phrases, audio or visio key. Every salesman should have one. Makes a marvelous gift, and surprisingly reasonable." "So that's it, Ben. I just love it!" "Good! It's yours, compliments of Amalgamated." "But then you're not selling them? Well, what on earth ?" "Damn it, Ben," Fred Stoddard broke in, "come on, man, out with it.

The deAngelis operator called over to the audio controller, "Got us a case of crinkle fender, I think." "Where?" the controller asked. "Can't tell yet," Blaney said. "A hot-head and a citizen with righteous indignation. They're clear enough, but not too sharp." He swiveled in his chair and adjusted knobs before a large circular screen.

While at the station you will acquaint yourselves with the operation of the new audio communications transmitter. When I'm satisfied that you can handle it under the prevailing conditions of an extended space flight, we'll blast off for a test of its range and performance." Major Connel paused and faced the cadets squarely.

Keep your audio communicator in the jet boat on at all times. And be sure your belt communicator is always open. Check your oxygen supply and space suits. All clear?" One by one, the spacemen checked in through the audio communicators that all was clear.

He was too far away to pick up an image on the teleceiver, but the others could hear him on the audio, if, thought Tom, they were still alive. "Attention! Attention! Polaris to Major Connel! Major Connel, can you hear me? Come in, Major Connel Astro Roger somebody come in!"

"If you and Scotty feel up to it," Winston added, "we'd like you to duplicate the audio tapes for us. We want to send a set right away to Green Bank. They started audio recording, too, yesterday, but they don't have the hours when the object was in sight of our telescope but not theirs. They're duplicating the signals we didn't get after the object dropped below our horizon.

Some of these records have direct links to digitized materials, including selected full-text, image, video and audio files, at the Library of Congress and elsewhere. This is a test system and results may not be all inclusive. Even early motion pictures are available for searching and viewing once the proper viewer is installed.

The hell with the conveyor's feelings, if so simple a robot really had any. He liked to walk. "Color pattern," Betty ordered the vuescreen as he came in, "robot audio out." With people talking in the house it was still necessary to put the machines under master automatic and manual control.