Michael Thompson

@Michael26413485

Vintage computer enthusiast. Restorer and docent at the RI Computer Museum. Restorer and docent at the New England Wireless and Steam Museum.

Rhode Island

Joined December 2019

55Following

45Followers

Michael Thompson@Michael26413485 · Jun 2, 2024

This classic DEC PDP-8 was recently donated to the Rhode Island Computer Museum by Boston Financial and Equity Corporation and came from Sonny Monosson's American Used Computer. It was powered on Saturday for the first time in probably 50 years.

Michael26413485's tweet image. This classic DEC PDP-8 was recently donated to the Rhode Island Computer Museum by Boston Financial and Equity Corporation and came from Sonny Monosson's American Used Computer. It was powered on Saturday for the first time in probably 50 years.

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Michael Thompson@Michael26413485 · Jan 7, 2024

I just got the DEC PDP-9 at the Rhode Island Computer Museum to boot the ADSS monitor and run a "Hello World" program again. That again makes it the only running PDP-9. There are no integrated circuits in the PDP-9, just lots of transistors.

Michael26413485's tweet image. I just got the DEC PDP-9 at the Rhode Island Computer Museum to boot the ADSS monitor and run a "Hello World" program again. That again makes it the only running PDP-9. There are no integrated circuits in the PDP-9, just lots of transistors.

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Michael Thompson@Michael26413485 · Dec 24, 2022

I have been working on a Wavetek 1080 Sweep Generator from the early 1990s. Traced a -18VDC power supply fault to a shorted capacitor. Not the one in the middle that burned, the one on the left that is shorted. Wavetek put both of these polarized Tantalum capacitors in backwards.

Michael26413485's tweet image. I have been working on a Wavetek 1080 Sweep Generator from the early 1990s. Traced a -18VDC power supply fault to a shorted capacitor. Not the one in the middle that burned, the one on the left that is shorted. Wavetek put both of these polarized Tantalum capacitors in backwards.

Michael Thompson@Michael26413485 · Dec 20, 2021

Looks like they found a solution to not having enough time to get things done.

Michael Thompson@Michael26413485 · Oct 3, 2020

If you are interested in Stationary Steam Engines and Wireless Radios, the New England Wireless and Steam Museum is live today with their annual Steam-Up event. This year is is virtual, but hopefully it will be face-to-face next year. See: youtu.be/MCGI0LMXf50