. Electronic apparatus for biological research. Electronic apparatus and appliances; Biology -- Research. -300VO- -vvv^-'-^Tnmr^-i- 0-40mA 1,250il 20H 5W Figure hundreds of ohms. It is not possible to be more precise than this because individual tubes vary appreciably in their abihty to maintain a near-constant potential difference over a wide range of current. Cold-cathode-diode- stabilized power packs are therefore suitable for applications where the load is rather constant, such as precision oscillators, differential amplifiers, etc. 3-7kft ? 85V^ 7-5mA. Mains Figure Even greater
. Electronic apparatus for biological research. Electronic apparatus and appliances; Biology -- Research. -300VO- -vvv^-'-^Tnmr^-i- 0-40mA 1,250il 20H 5W Figure hundreds of ohms. It is not possible to be more precise than this because individual tubes vary appreciably in their abihty to maintain a near-constant potential difference over a wide range of current. Cold-cathode-diode- stabilized power packs are therefore suitable for applications where the load is rather constant, such as precision oscillators, differential amplifiers, etc. 3-7kft ? 85V^ 7-5mA. Mains Figure Even greater independence of mains voltage fluctuations may be had by connecting stabilizer circuits in cascade, as for example in the arrangement in Figure , devised by Luke^ for supplying amplifiers. Electronically stabilized HT supplies In order to secure both independence of the mains voltage and a really low output impedance it is necessary to use electronic stabilization, employ- ing hard valves. Innumerable designs for doing this have been produced, 587. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Donaldson, Peter Eden Kirwan. New York, Academic Press
Size: 2321px × 1077px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
