Radicon Bus with a DIY cohere detector tube. Testing original and other spark gap transmitters. @Robothut

Uploaded March 2026 | Updated September 2026, 4 days ago

I made a replacement Cohere detector tube from an old glass fuse filled with metal filings. Then tested it with the original spark gap transmitter and with barbeque piezo spark igniters and even a stun gun.

Link to demo of Radicon Buss assembled and operating.
youtu.be/YmyblRwWfR4

link to making cohere detector.
youtu.be/2goZcVGqx4k?si=PAsNoJRvweg6Jws8

Link to build a Piezo spark transmitter for a cohere detector.
youtu.be/vZEtZ4koq_c?si=mZDTyLgLk3xuSVrc

Link to 3d printed Radicon robot with cohere detector.
youtu.be/ffpTWWCSyO8?si=Wj7DXiDwDU_NEajt

Link to inside a broken 1950's Cohere detector tube.
youtube.com/shorts/UX0j2ExoYkE?si=KrMv2HXdL9mZtgff

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Radicon Bus with a DIY cohere detector tube. Testing original and other spark gap transmitters.

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