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The 2A3 Tube Amplifier - A Tribute to Simplicity and Warm ...
https://audioxpress.com/article/the-2a3-tube-amplifier-a-tribute-to-simplicity-and-warm-sound
The 2A3 vacuum tube is a power triode capable of outputting 3.5 W in a single-ended Class A configuration. In this project, the 2A3 power tube runs at a 60-mA plate current with no signal applied and has a 410-V plate voltage. The output transformer’s primary impedance is 3.3 kΩ (see Figure 1).
Which 2A3 for my Lowther EX4s? - Amplifiers - Lenco Heaven ...
https://www.lencoheaven.net/forum/index.php?topic=24494.0
My Bluebell 2A3 SET will be back from the menders soon. It was a 3 input line level integrated, it's now a single input power amp. I'm after suggestions for which brand/type of 2A3 valves - NOS, new or WHY. The Lowthers in the Oris horns are used from 150Hz up only so no need to worry about bass. This is all about the mid and top.
www.bluebellaudio.com
http://www.bluebellaudio.com/chassispics.htm
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SUN AUDIO SV-2A3 amplifier - D a r k L a n t e r n
https://darklanternforowen.wordpress.com/2017/12/31/sun-audio-sv-2a3-amplifier/
SUN AUDIO SV-2A3 amplifier. Posted on December 31, 2017 by darklanternowen. This Japanese single-ended, vacuum tube amplifier can be purchased in ‘kit’ form or fully assembled. Power output is 3.5 watts/channel. Supplied with Russian Sovtek tubes – 2A3 (2), 6SN7 (2), 5U4G (1). Amplifier weight is 16 kgs.
Bluebell audio?? - DIY - HiFi WigWam
https://www.hifiwigwam.com/forum/topic/140452-bluebell-audio/
Exceptionally easy to work and drill - the metal is quite soft. and no need to worry about attaching corners, bottoms and all the rest of it. Monocoque chassis rule! My standard size would be the largest in the usual range - 275 x 175 x 67mm around £24. I have one ready for a bass amp build, simple Fender circuit.
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