HP 98035 Clock Module Repair-A-Thon - Part 1: 12 bad boards, how many can we save?
HP 98035 Clock Module Repair-A-Thon - Part 2: HP's Nanoprocessor
HP 98035 Clock Module Repair-A-Thon - Part 3: magic smoke escapes
HP 98035 Clock Module Repair-A-Thon - Part 5: 100% success or bust!
HP 98035 Clock Module Repair-A-Thon - Part 4: getting the ghosts out of the interface boards
LED watch chip from Texas Instruments (HP 98035 Repair-a-thon Part 0)
HP 9825 calculator with HP 98035 clock module demo (and an Apollo switch!)
HP 9825 Repair - Part 13: we get the tape working, and it’s fully repaired!
Inside failed vintage components: 1 MHz quartz crystal and early CMOS IC
HP 8447F 1.3 GHz Amplifier Quick Repair
Bubble LED clock hack with 1970's tech
Xiaomi high voltage refrigerator lemon
Expensive Scrapyard Finds! Repair-A-Thon!
HP 85 Repair Part 5. Comparison of my two machines, hidden signatures.
Explaining the Friden Mechanical Calculator (while fixing it)
HP 9825 Repair Part 5: We have an Apollo 13 disaster on our hands
HP 9825T Repair Part 1: Power Supply Meltdown
HP 9825 Repair Part 6: Can the HP 547A probe get us out of trouble?
Soyuz Electro-Mechanical Space Clock - Part 2: We try every function!
Dial-A-Level lives again