Wednesday, February 18, 2015

#AwwwThat'sSoSweet




I can imagine hearing you brave little rodents scurrying outside right now, your brows furrowed. You're so brave to scurry around so quietly. Saying not a goddamned thing. Patting yourself on each other's little scurrying rodent backs.

Well, I guess it won't embed into this blog.














https://books.google.com/books?id=oTY4AAAAQBAJ&lpg=PT26&ots=SzjTy8d2hl&dq=%22wainwright%22%20%22fire%20controlman%22&pg=PT29#v=onepage&q=molck&f=false

Google Books


A Sailor's History of the U.S. Navy

By Thomas Cutler










Anyway.

First time I had read that, finding it just today.

What a buffoon.










http://navybmr.com/study%20material%203/NAVEDTRA%2014099A.pdf

UNITED STATES NAVY


NONRESIDENT TRAINING COURSE


Fire Controlman, Volume 2 - Fire-Control Radar Fundamentals

NAVEDTRA 14099


page 1-6


Synchronizer

The heart of the radar system is the synchronizer. It generates all the necessary timing pulses (triggers) that start the transmitter, indicator sweep circuits, and ranging circuits. The synchronizer may be classified as either self-synchronized or externally synchronized.

In a self-synchronized system, pulses are generated within the transmitter. Externally synchronized system pulses are generated by some type of master oscillator external to the transmitter, such as a modulator or a thyratron.

Transmitter

The transmitter generates powerful pulses of electromagnetic energy at precise intervals. It creates the power required for each pulse by using a high-power microwave oscillator (such as a magnetron) or a microwave amplifier (such as a klystron) supplied by a low power RF source.










http://fcsorm.dyndns.org/fcsorm/images/pdfdata/pdfbooks/firecontrolclass/fcsclass02.pdf

UNITED STATES NAVY

Naval Education and Training Command


Fire Controlman Second Class

DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.


FIRE CONTROLMAN

SECOND CLASS

NAVEDTRA 10277

1985 Edition


CHAPTER 4

RADAR PRINCIPLES


page 4-37


Consider the rf section of a basic klystron amplifier. This part of the tube is quite different from a conventional triode amplifier. The resonant circuits used in a klystron amplifier are reentrant cavities. The characteristics of this type of cavity have been discussed previously.

Referring to figure 4-44, electrons pass through the cavity gaps in each of the resonators as well as the cylindrical metal tube between the gaps. These metal tubes are called drift tubes. In a klystron amplifier, the low-level rf input signal is coupled to the first resonator, which is called the input (buncher) cavity. The signal may be coupled through either a waveguide or a coaxial connection. If the cavity is tuned to the frequency of the rf input, it will be excited into oscillation. An electric field will exist across the buncher gap, alternating at the input frequency. For half a cycle, the electric field will be in a direction that causes the field to increase the velocity of electrons flowing through the gap. On the other half of the cycle, the field will be in a direction that causes the field to decrease electron velocity. This


page 4-39

effect is called velocity modulation, and it is shown in figure 4-45 .

NOTE: When the voltage across the cavity gap is negative, electrons decelerate; when the voltage is zero, the electrons are unaffected; and when the voltage is positive, the electrons accelerate.

After leaving the buncher gap (fig. 4-45), the electrons proceed through the drift tube region toward the collector. In the drift tube region, electrons that have been speeded up by the electric field in the buncher gap tend to overtake electrons that have been slowed down. Because of this action, bunches of electrons begin to form in the drift tube region and will be completely formed by the time they reach the gap of the last cavity. The last cavity is called the output (catcher) cavity. Bunches of electrons periodically flow through the gap of this output cavity, and during the time between bunches, relatively few electrons flow through the gap. The time between arrival of electron bunches is equal to the period of one cycle of the rf input signal.

The initial bunch of electrons flowing through the catcher cavity cause the cavity to oscillate at its resonant frequency. This sets up an alternating electric field across the catcher cavity gap










http://www.springfieldspringfield.co.uk/view_episode_scripts.php?tv-show=ncis-new-orleans-2014&episode=s01e15

Springfield! Springfield!


NCIS: New Orleans

Le Carnivale de la Mort


That's a beautiful necklace you're wearing.



- posted by H.V.O.M - Kerry Wayne Burgess 4:38 PM Pacific Time Spokane Valley Washington USA Wednesday 18 February 2015