large 4kv DC power supply mounted in rack

military radio receiver tuning lock system

47 Ford 1.5 ton truck cold start

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working on a 341-020 movement for a customer.

running the 645

lathe and a bunch of old junk

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Split Locker Washer vs Nylon Locknut – DIY Impact & Vibration Test

radio tuning lock pt 2

starting on restoration of my bsa b25

Salvaging Useful Parts from Copy Machines: Stepper Motors, BLDCs, SMPS, Laser Diodes etc

finding gold in my shed

Vintage Technology: Electronics-- BASIC RADIO CIRCUITRY, Learn How Radio Works, 1971 (History)

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DIY 256-Core RISC-V super computer

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steel iron work table