My Sexy Blue Tubes, Part 2, The Sophia Electric EL34-ST and KT88-ST Vacuum Tubes! feature article is now live at Positive Feedback (HERE)!
A quad of Sophia Electric EL34-STs.
A quad of Sophia Electric blue glass long-life KT88-ST vacuum tubes for the Leben CS600 / CS600X.
I hope you enjoy the article!
As always, thanks for stopping by, and may the tone be with you!
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