![The thermionic vacuum tube and its applications . blackening its surface.(Equation 23, Chapter IV.) 78. Amplification Circuits. A great variety of circuit arrange-ments have been devised in which the thermionic tube The thermionic vacuum tube and its applications . blackening its surface.(Equation 23, Chapter IV.) 78. Amplification Circuits. A great variety of circuit arrange-ments have been devised in which the thermionic tube](https://c8.alamy.com/comp/2CE3BN0/the-thermionic-vacuum-tube-and-its-applications-blackening-its-surfaceequation-23-chapter-iv-78-amplification-circuits-a-great-variety-of-circuit-arrange-ments-have-been-devised-in-which-the-thermionic-tube-can-beoperated-as-an-amplifier-we-shall-however-discuss-only-a-few-fig-13spower-tube-with-water-cooled-anode-types-of-circuits-for-the-purpose-of-illustrating-the-points-thatmust-be-considered-in-designing-efficient-circuits-the-necessary-considerations-follow-directly-from-the-theoretical-discussions-inthe-foregoing-for-example-it-was-shown-that-the-current-in-thecirc-2CE3BN0.jpg)
The thermionic vacuum tube and its applications . blackening its surface.(Equation 23, Chapter IV.) 78. Amplification Circuits. A great variety of circuit arrange-ments have been devised in which the thermionic tube
![OTOMON Laboratory (音門ラボ) / 71A tube stereo preamp, booster, amplifier 77/78 tube drive * PHILIPS transformer 110/120/230V OTOMON Laboratory (音門ラボ) / 71A tube stereo preamp, booster, amplifier 77/78 tube drive * PHILIPS transformer 110/120/230V](http://soundgate.net/upload/save_image/08162319_5b76851fba6f7.jpg)
OTOMON Laboratory (音門ラボ) / 71A tube stereo preamp, booster, amplifier 77/78 tube drive * PHILIPS transformer 110/120/230V
![The thermionic vacuum tube and its applications . can, of course, also be increased by increasingthe space current; that is, by increasing the area of the cathodeor its thennionic efficiency. (See The thermionic vacuum tube and its applications . can, of course, also be increased by increasingthe space current; that is, by increasing the area of the cathodeor its thennionic efficiency. (See](https://c8.alamy.com/comp/2CE3RMC/the-thermionic-vacuum-tube-and-its-applications-can-of-course-also-be-increased-by-increasingthe-space-current-that-is-by-increasing-the-area-of-the-cathodeor-its-thennionic-efficiency-see-page-78-the-coated-tjtpe-ofcathode-has-a-high-thennionic-efficiency-and-therefore-lends-itselfwell-to-the-construction-of-high-power-low-voltage-tubes-sucha-tube-is-shown-in-fig-137-this-tube-is-capable-of-giving-ana-c-output-of-several-hundred-watts-when-operating-on-a-platevoltage-of-only-about-700-1000-volts-in-order-to-avoid-using-large-containers-we-can-use-coohngmeans-to-carry-off-th-2CE3RMC.jpg)