Teardown Tuesday An early 1970’s Australian made Systron Donner Nixie tube display counter/timer. Forum HERE

Mailbag Monday Forum HERE SPOILERS: https://www.pirlcharger.com/ 12:20 iTron VFD Displays 16:06 Oscilloscope Component Tester Schematics: https://kabinett.homepage.t-online.de/bucket/Octopus/Octopus_SCM.jpg BOM: https://www.dropbox.com/s/he3ef0wfknn19eg/Octopus_BOM.csv In-depth description of the project: https://www.dropbox.com/s/q6114aa1o05ymfq/Description.docx 22:23 Random Chinese Mailbags

Banksy posted an update video showing more of the prank build and the shredding mechanism. But he’s still trolling us! Forum HERE Banky’s Directors Cut video

Sagan builds a rain detector circuit with Dave’s original Science Fair Tandy / Radio Shack 200-in-1 electronics projects kit from the 1980’s, and testing it using Dave’s first multimeter! Forum HERE Watch Sagan soldering for the first time!

Dave got a tip-off on a dumpster full of instruments, so raced off to check it out, what will he find? Forum HERE

Mailbag Monday, teardown bonanza! Forum HERE SPOILERS: – West German Geiger Counter Teardown – 6:35 Leo Bodnar Oscilloscope 40ps Pulse Generator for oscilloscope bandwidth measurement. – 11:32 Pocket Sprite Keyring Gameboy Teardown – 14:31 Defibrillator Simulator Teardown – 21:23 – Philips CD Discman Teardown

Taking a look at a sub 3 cent microcontroller, and other obscure Chinese manufactures, how to find them, and were to get them in stock. http://www.padauk.com.tw https://lcsc.com Forum HERE

More Mailbag Monday Forum HERE SPOILERS: A-TEK AT-601 PC ISA Bus Design Breadboarding Tool Gigatron TTL computer update Home VintageTek museum XY demo board https://www.ebay.com/str/vintagetek 1970’s Casio CQ-1 Calculator Zofz PCB Gerber Viewer https://www.zofzpcb.com/

How to turn a horrible unorganised schematic into a nice readable modular schematic with proper signal flow. Tips on industry standard and expected layout techniques. Using the open source Haasoscope oscilloscope as an example. Please do NOT complain about the length of this video. I know. It is what it is. 9:28 LED configuration 12:28 ...

Follow-up to the Studio Monitor Noise video, replacing the mains power supply with a battery supply. Does the noise floor go away? Forum HERE