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Guitar Amplifier With Homemade Tubes
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Making a Purple Nixie Tube
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Homemade Point Contact Transistor Attempt
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Semiconductor Free Nixie Clock Pt1
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Homemade Triode In An Oscillator Circuit
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First Homemade Triode Vacuum Tube
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Braille cell Progress report
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HF VTTC
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glass work #2 geissler tube
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glass work #1: Mini glow tube
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