Modern Radio Reception
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In our eReader you can find the full English version of the book. Read Modern Radio Reception 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 Modern Radio Reception
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A filament rheostat may be used to quietly and efficiently control the output voltage but should not be used where the full load current of 65 milliamperes is required as it will result in overheating the tube. With output current of 50 milliamperes or less, filament voltage varia- tion to control the output will prove more satisfactory than the use of high resistances which often become noisy or burn out in service. The filament rheostat knob should be insulated from the body of the rheostat a...s the filament itself is at positive "B" potential. Where complete AC operation is desired, one of the quietest systems yet devised is that of using CX-299 tubes with the filaments connected in series, the filament current of 60 milliamperes being supplied from the rectifier. The output tube may be of any convenient type, either CX-112 or CX-371, but it is very important that the plate current taken by this tube be returned thru the series filament con- nection of the CX-299 tubes in order to reduce the amount of DC current required from the rectifier.
What to read after Modern Radio Reception?
You can find similar books in the "Read Also" column, or choose other free books by Charles Roland Leutz to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
A filament rheostat may be used to quietly and efficiently control the output voltage but should not be used where the full load current of 65 milliamperes is required as it will result in overheating the tube. With output current of 50 milliamperes or less, filament voltage varia- tion to control the output will prove more satisfactory than the use of high resistances which often become noisy or burn out in service. The filament rheostat knob should be insulated from the body of the rheostat a...s the filament itself is at positive "B" potential. Where complete AC operation is desired, one of the quietest systems yet devised is that of using CX-299 tubes with the filaments connected in series, the filament current of 60 milliamperes being supplied from the rectifier. The output tube may be of any convenient type, either CX-112 or CX-371, but it is very important that the plate current taken by this tube be returned thru the series filament con- nection of the CX-299 tubes in order to reduce the amount of DC current required from the rectifier.
What to read after Modern Radio Reception?
You can find similar books in the "Read Also" column, or choose other free books by Charles Roland Leutz to read onlineMoreLess
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