Armour Engineer 25
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In our eReader you can find the full English version of the book. Read Armour Engineer 25 Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Armour Engineer 25
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spark) is then sent through the cell until the potassium is a deep violet in color. After this the hydrogen is pumped out and pure argon gas is introduced at a pressure of .75 mm. The sealing of the tube completes the process of manufacture.
Although the current through the photo- electric cell increases when the light on the cathode increases, the current obtained with such light is very small, not exceeding a few microamperes. To be readily useful, the minute current must be amplified suffi- ...ciently to operate relays, ordinary record- ing and indicating instruments, or other devices. The most commonly used sys- tems employ the three element thermionic amplifier tube similar to the type that is used as a radio amplifier. This type of tube will be referred to as the pliotron.
I i L 4 f?/*>"" Fig. 2.
The fundamental circuit for this amplifi- cation is shown in Fig. 2.
The circuit is so arranged that a change in the photoelectric tube changes the grid voltage of the pliotron. This results in a proportionate change of the pliotron plate current which is strong enough to operate relays, etc.
What to read after Armour Engineer 25?
You can find similar books in the "Read Also" column, or choose other free books by Armour Institute of Technology to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
spark) is then sent through the cell until the potassium is a deep violet in color. After this the hydrogen is pumped out and pure argon gas is introduced at a pressure of .75 mm. The sealing of the tube completes the process of manufacture.
Although the current through the photo- electric cell increases when the light on the cathode increases, the current obtained with such light is very small, not exceeding a few microamperes. To be readily useful, the minute current must be amplified suffi- ...ciently to operate relays, ordinary record- ing and indicating instruments, or other devices. The most commonly used sys- tems employ the three element thermionic amplifier tube similar to the type that is used as a radio amplifier. This type of tube will be referred to as the pliotron.
I i L 4 f?/*>"" Fig. 2.
The fundamental circuit for this amplifi- cation is shown in Fig. 2.
The circuit is so arranged that a change in the photoelectric tube changes the grid voltage of the pliotron. This results in a proportionate change of the pliotron plate current which is strong enough to operate relays, etc.
What to read after Armour Engineer 25?
You can find similar books in the "Read Also" column, or choose other free books by Armour Institute of Technology to read onlineMoreLess
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