Wednesday, September 17, 2025

The Pleiades single electron tube EF183 power amplifier in class A (electrons flowing all the time) sounds amazing

 At your risk. Potential lethal voltage. Take all safety precautions.


Operation conditions: Va=120V, Ia=20mA, 1:12 input transformer, 5KOhms to 4Ohms output transformer, Celestion Ditton 150 speaker used is 8Ohms.


Signal path:


Constant Craving - K. D. Lang on CD - Sony CD Walkman line out - Pleiades EF183 single ended power amplifier - Celestion Ditton 150 


Huge bass, smooth mid and treble, dynamic.


It is funny how loud and big just.an electron tube the size of ECC83 can sound.








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