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Audio Classroom - Tubes
http://tubes.nekhbet.com/pdf/ga699ac.pdf
1 GLASS AUDIO 6/99 Audio Classroom ... BY NORMAN H. CROWHURST FIGURE 1: Triode voltage-amplifier circuit. G-1453-1 FIGURE 2: Plate current-plate voltage characteristic curves for 12AX7 tube, used to evaluate circuit ele-ments in Fig. 1. G-1453 …
Audio Classroom - ken-gilbert.com
http://ken-gilbert.com/images/pdf/ga100ac.pdf
Audio Classroom Designing Your Own Amplifier, Part 2: The Power Stage BY NORMAN H. CROWHURST FIGURE 2: The curves of Fig. 1, with the maximum dissipation curve drawn in (dotted). Two possible load lines are shown using operating voltages of 400 on the plate and −40 on the grid. Small construction lines show a convenient way of getting the
Audio Classroom - ken-gilbert.com
http://ken-gilbert.com/images/pdf/ga300ac.pdf
Audio Classroom Designing Your Own Amplifier, Part 4a: Push-Pull Power Stages BY NORMAN H. CROWHURST FIGURE 1: Characteristic curves for a 45 tube, which are used as a basis for the discussion of push-pull output stages. GLASS AUDIO 3/00 1
Audio Classroom
https://www.tiffe.de/roehren/ga200ac.pdf
Audio Classroom Designing Your Own Amplifier, Part 3: Phase Inverters BY NORMAN H. CROWHURST FIGURE 1: Circuit of phase inverter using a series or direct-coupled transformer. FIGURE 2: Load line representing one possible operating condition with series transformer coupling. The dotted line rep-resents DC drop from the transformer pri-
Tube Literature - Triodeguy
http://www.triodeguy.com/vacuum_tube_literature.htm
A series of articles by Norman Crowhurst were published by Glass Audio under the Title "Audio Classroom". Edward Dell has kindly granted me permission to publish these articles here. It will be a lot of work so if you are interested, please be patient …
Technical books online
http://www.tubebooks.org/technical_books_online.htm
Basic Audio, Norman Crowhurst, 1959 - Thanks to Keith Carlsen! This is a 3-volume set on, as the title implies, basic audio. The best introduction to tube hi-fi I've seen, the first volume starts with the nature of sound, and covers the basics of speakers and microphones. Volume 2 continues with amplification, covering the basics of amplifier ...
Where can I use this tubes | diyAudio
https://www.diyaudio.com/community/threads/where-can-i-use-this-tubes.37635/
Besides books there are quite a number of sites with very useful information about the use of vacuum tubes for audio. The best known, I think, is John Broskie's The Tubecad Journal. TUBECAD Another must read series of articles by Norman Crowhurst can be found here: AUDIO CLASSROOM
Sign in - Google Accounts - Google Classroom
https://classroom.google.com/
Sign in - Google Accounts - Google Classroom
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