Mark Furneaux — GeistHaus

What Old Motherboards Should You Bother Keeping?

Mark Furneaux May 13, 2026 Updated May 13, 2026

https://www.youtube.com/v/hZufsE1Rq6Y?version=3 (application/x-shockwave-flash)

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The Horrors Within The Cheapest Solar Microinverter

Mark Furneaux May 8, 2026 Updated May 12, 2026

https://www.youtube.com/v/rMgshGtorMw?version=3 (application/x-shockwave-flash)

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Wasting Effort Repairing a JVC D-ILA Projector

Mark Furneaux May 6, 2026 Updated May 10, 2026

https://www.youtube.com/v/HLLhWUQX36Y?version=3 (application/x-shockwave-flash)

yt:video:HLLhWUQX36Y

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Liquid Damaged GTX 1080 Ti - Can It Be Saved?

Mark Furneaux Apr 16, 2026 Updated Apr 25, 2026

https://www.youtube.com/v/g4ukqec2tzo?version=3 (application/x-shockwave-flash)

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Let's Make a Kitchen Scale That Doesn't Lie To You (Out of Junk)

Mark Furneaux Mar 14, 2026 Updated Apr 21, 2026

https://www.youtube.com/v/3ANcyO0-xRQ?version=3 (application/x-shockwave-flash)

yt:video:3ANcyO0-xRQ

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Tip For Tracing Circuits on Large and Complex PCBs

Mark Furneaux Jan 29, 2026 Updated Apr 22, 2026

https://www.youtube.com/v/YIEjMOPCwM0?version=3 (application/x-shockwave-flash)

yt:video:YIEjMOPCwM0

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Replacing the "Not Serviceable" Bearings on a Filter Queen Vacuum Power Head (New Style)

Mark Furneaux Jan 22, 2026 Updated Feb 23, 2026

https://www.youtube.com/v/oEJ6OIHEAjc?version=3 (application/x-shockwave-flash)

yt:video:oEJ6OIHEAjc

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Repair and Unnecessary Reverse-Engineering of a Nespresso Vertuo Next Coffee Machine (or 2)

Mark Furneaux Jan 18, 2026 Updated Jan 18, 2026

https://www.youtube.com/v/v424-YxSAbM?version=3 (application/x-shockwave-flash)

yt:video:v424-YxSAbM

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1976 Radio Shack EC-375 Calculator Quick Repair

Mark Furneaux Jan 8, 2026 Updated May 5, 2026

https://www.youtube.com/v/AeFtWT8se4M?version=3 (application/x-shockwave-flash)

yt:video:AeFtWT8se4M

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My Homemade Backup Sump Pump System

Mark Furneaux Dec 30, 2025 Updated Apr 28, 2026

https://www.youtube.com/v/IW6iKG1mDxA?version=3 (application/x-shockwave-flash)

yt:video:IW6iKG1mDxA

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Repair: $15k Christie Projector Taken Out By $0.02 Part

Mark Furneaux Dec 18, 2025 Updated Feb 16, 2026

https://www.youtube.com/v/dkvEBG4UB_Y?version=3 (application/x-shockwave-flash)

yt:video:dkvEBG4UB_Y

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Repair of a 1986 Sony D-77/D-55T Discman ("Compact" CD Player)

Mark Furneaux Dec 14, 2025 Updated Apr 29, 2026

https://www.youtube.com/v/WNbBqWSVFrc?version=3 (application/x-shockwave-flash)

yt:video:WNbBqWSVFrc

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Modifying a Tiny Band Saw to Take the Wrong Size Blade

Mark Furneaux Dec 7, 2025 Updated Apr 30, 2026

https://www.youtube.com/v/oN0Sz-e_rxU?version=3 (application/x-shockwave-flash)

yt:video:oN0Sz-e_rxU

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Repairing and Upgrading a Viking Oven Control Board (PE070786)

Mark Furneaux Nov 25, 2025 Updated Feb 12, 2026

https://www.youtube.com/v/9vakjLRapq8?version=3 (application/x-shockwave-flash)

yt:video:9vakjLRapq8

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Fix Your LG Monitor Joystick Control

Mark Furneaux Nov 21, 2025 Updated May 5, 2026

https://www.youtube.com/v/QdUXa6OARYA?version=3 (application/x-shockwave-flash)

yt:video:QdUXa6OARYA

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