Custom-Built Replacement Tubes For RCA Theremin
Mark McKeown built these custom vacuum tubes by request to replace the 120 tubes in the RCA Theremin. The tubes are a solid statement replacement and eliminate the volume lag of the original tubes. He has some left from the project and is selling them...
Recent Forum Posts
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by oldtemecula on Build an Analog Theremin that Rivals a Modern Day Classic for about $100 an hour ago -
by Dominique on DIY theremin project 7 hours ago -
by pitts8rh on Build Project: Dewster's D-Lev Digital Theremin 11 hours ago -
by pitts8rh on Let's Design and Build a (mostly) Digital Theremin! 1 day ago
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by oldtemecula on Tube/Valve Tannerin/Ondes Martenot 3 days ago
Recent Comments
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by Dominique on photo VCA output at minimum gain 12 days ago:
""Volume" potentiometer at minimum gain."
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by Dominique on photo VCA output at maximum gain 12 days ago:
"Full gain here apply to the volume potentiometer, not the antenna control."
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by pitts8rh on photo Replica Melodia Bottom View 36 days ago:
"Rabbet in rear piece was intentionally cut less deep than that of the original cabinet, leaving 1/4" instead of the original 1/8"."
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by pitts8rh on photo Mitered Top Moog Melodia 49 days ago:
"Picture courtesy of senior_falcon"
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by pitts8rh on photo Finished Moog Melodia Knobs 49 days ago:
"Added brass bushings with setscrews and drilled dimple for white dots."