BEB #141: Building a new test adapter for my ROETEST Tube Tester, EF12k TELEFUNKEN @MaxKoschuh

BEB #141: Building a new test adapter for my ROETEST Tube Tester, EF12k TELEFUNKEN @MaxKoschuh

Uploaded January 2021 | Updated September 2026, 1 day ago

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Welcome to the Beautiful-Electronics-Blog, BEB. Free electronics videos, teardown, and education.

Channel of the week: CPU Galaxy
youtube.com/c/CPUGalaxy

Music of the day: Wayr - Silence (Eminus Remix)
youtube.com/watch?v=TXq3_9Mip1Y

BEB #141: Building a new test adapter for my ROETEST Tube Tester, EF12k TELEFUNKEN

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BEB 144: Anritsu MS62A Spectrum Analyzer (a brief look inside)

BEB #140: Can we repair it? Vintage ITT Transistor Radio (Touring Studio 104)

CEPUS #15: SMD parts 🖤, Mailbag 💚, Baby Kittens ❤️

BEB #112: Siemens 1970ies Kompaktsichtgerät Steuerung 3974 Teardown

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BEB #98: Fleamarket finds (Part 2) Look what Ive found!

BEB #132: Modern Soundcraft K2 Power Supply: Better than the old version? (Teardown Part 2)

BEB #110: Schlumberger FS30 Signal Generator: Whats inside?

BEB #74: inside Thomanns t.amp E-800 PA amplifier Endstufe

Ing. Max Koschuh (BEB Electronics Blog) |

BEB #141: Building a new test adapter for my ROETEST Tube Tester, EF12k TELEFUNKEN