Bresee's superior processes, and George Erdi's outstanding design expertise enabled PMI to establish itself as a superior source of linear amplifiers, including operational amplifiers, some of which garnered U . S . patents.
32.
Creutz built an ionization chamber and a linear amplifier out of radio vacuum tubes, coffee cans and motorcycle batteries, and with this apparatus the physicists at Princeton were able to confirm the results.
33.
During the 1970s the FCC banned the sale of linear amplifiers capable of operation from 24 to 35 MHz to discourage their use on the CB band, although the use of high power amplifiers continued.
34.
Improved models of the two transceivers were periodically introduced well into the 1970s along with accessories, including a remote VFO ( for separate control of receiver and transmitter frequency ) and the Mark-I and Mark-II linear amplifiers.
35.
After years of work Black invented the negative feedback amplifier which uses negative feedback to reduce the gain of a high-gain, non-linear amplifier and makes it act as a low-gain, linear amplifier with much lower noise and distortion.
36.
After years of work Black invented the negative feedback amplifier which uses negative feedback to reduce the gain of a high-gain, non-linear amplifier and makes it act as a low-gain, linear amplifier with much lower noise and distortion.
37.
Large vacuum-tube linear amplifiers are based on old radio broadcast techniques and generally rely on a pair of large vacuum tubes supplied by a very high voltage power supply to convert large amounts of electrical energy into radio frequency energy.
38.
The linear amplifier has an advantage over the multi-mode amplifier : if several modes of a linear amplifier are amplified by the same factor, the noise in each mode is determined independently; that is, modes in a linear quantum amplifier are independent.
39.
The linear amplifier has an advantage over the multi-mode amplifier : if several modes of a linear amplifier are amplified by the same factor, the noise in each mode is determined independently; that is, modes in a linear quantum amplifier are independent.
40.
Bernard M . Oliver showed that slight compression of the gain by the amplifier mitigates the envelope transfer function so that most oscillators show good transient response, except in the rare case where non-linearity in the vacuum tubes canceled each other producing an unusually linear amplifier.
