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VinylSavor: Tube of the Month: The 45
https://vinylsavor.blogspot.com/2011/09/tube-of-month-45.html
45, Tube 45; Röhre 45 ID3112, Triode, vacuum
https://www.radiomuseum.org/tubes/tube_45.html
According to Tyne, page 322, this audio-power output tube was introduced in March 1929. It is intermediate between UX171A and UX210 and was first named UX245, later in short 245 and 45. See other identical denominations too. The oxide-coated filament operates at 2.5 volts AC or DC, taking 1.4 amperes.
The 45 tube amplifier - Talkin' Tubes - The Klipsch Audio ...
https://community.klipsch.com/index.php?/topic/194209-the-45-tube-amplifier/
George is a well respected tube designer on a technical forum. Below is what he has to say about the 45 tube in his amplifier design. I am well aware there are those that disagree as there is on any subject and I respect their opinion especially in that audio is such a subjective subject. I just though I would post my reason for building a 45 ...
45 Triode — TRIODE LAB
http://www.triodelab.com/45-triode
One set of variables/design will NOT be able to maximize the full potential of two different tubes! And this is where the 45 Mono Blocks come in, and they are very popular on 100db+ applications. Testimonial Feedback by Michael Kalellis of Arion Audio, USA “I have heard many, many systems over the years, from cheap to 500K and up to who knows.
The Simple 45 - Dagogo
https://www.dagogo.com/the-simple-45/
I am satisfied with 45 tube. But the amplifier is a diy product and I ned the valius of voltaje and current because some times the sound is very god and today is imposible listen nice pasages from music. The voltaje and current are ajustable and input capacitor for audio is changeable. Alot of thanks. Hugo Gonzales.
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