This is part of a series of posts about building an Apple-1 reproduction in 2024 (and 2025). See also: Building an Apple-1 Reproduction in 2024 - Part 1: Components Building an Apple-1 Reproduction in 2024 - Part 2: Power Supply Building an Apple-1 Reproduction in 2024 - Part 3: The Retro...

This is part of a series of posts about building an Apple-1 reproduction in 2024 (and 2025). See also: Building an Apple-1 Reproduction in 2024 - Part 1: Components Building an Apple-1 Reproduction in 2024 - Part 2: Power Supply Building an Apple-1 Reproduction in 2024 - Part 3: The Retro...

This is part 5 of a series of posts about building an Apple-1 reproduction in 2024 (and 2025). See also: Building an Apple-1 Reproduction in 2024 - Part 1: Components Building an Apple-1 Reproduction in 2024 - Part 2: Power Supply Building an Apple-1 Reproduction in 2024 - Part 3: The Ret...

This is part 4 of a series of posts about building an Apple-1 reproduction in 2024. See also: Building an Apple-1 Reproduction in 2024 - Part 1: Components Building an Apple-1 Reproduction in 2024 - Part 2: Power Supply Building an Apple-1 Reproduction in 2024 - Part 3: The Retro Chip Tes...

This is part 3 of a series of posts about building an Apple-1 reproduction in 2024. See also: Building an Apple-1 Reproduction in 2024 - Part 1: Components Building an Apple-1 Reproduction in 2024 - Part 2: Power Supply Building an Apple-1 Reproduction in 2024 - Part 4: Assembly Buildin...

This is part 2 of a series of posts about building an Apple-1 reproduction in 2024. See also: Building an Apple-1 Reproduction in 2024 - Part 1: Components Building an Apple-1 Reproduction in 2024 - Part 3: The Retro Chip Tester Building an Apple-1 Reproduction in 2024 - Part 4: Assembly ...

Vail Resorts is a ski resorts company which owns a large number of resorts, including Kirkwood in California. We have been skiing at Kirkwood for many years, and have always enjoyed the resort. In March 2024, my wife injured her knee while skiing there. She visited her doctor, and the k...

This is part 1 of a series of posts about building an Apple-1 reproduction in 2024. See also: Building an Apple-1 Reproduction in 2024 - Part 2: Power Supply Building an Apple-1 Reproduction in 2024 - Part 3: The Retro Chip Tester Building an Apple-1 Reproduction in 2024 - Part 4: Assembl...

Introduction In late 2023, I acquired a Commodore VIC-20 computer. I had been thinking about getting one (or a Commodore 64) if I could get a good deal, and this was one. It came with a few cartridges, including a Super Expander memory expansion cartridge, a Datasette with a few tapes, a joystic...

The IBM Magnetic Tape Selectric Composer (MT/SC) Introduction This is part 2 of a two-part post. See also The IBM Magnetic Tape Selectric Composer - Part 1. In the first part, I placed the IBM MT/SC in its context, described its various parts at a high level, and covered the input stati...

The IBM Magnetic Tape Selectric Composer (MT/SC) Introduction This is part 1 of a two-part post. See also The IBM Magnetic Tape Selectric Composer - Part 2. For a few years now, I have been collecting IBM typewriters. That includes the Selectric, probably the best known of the IBM typew...

Spoiler: The restored Yost 20 Introduction A few years ago, I bought a Yost 20 typewriter in Switzerland (serial number KM00370). The brand is named after George Washington Newton Yost, a character who was instrumental in getting the first commercially successful typewriter to market: in...

Introduction In 2021, I wrote about my IBM Memory Typewriter project. See the following posts: The IBM Memory Typewriter Restoring an IBM Memory Typewriter - Part 1 Restoring an IBM Memory Typewriter - Part 2 As of March 2024, I haven’t yet completed the Memory Typewriter project. Howe...

Introduction Concurrently with my work on the 1979 TeleVideo TVI-912, I acquired a TeleVideo TS-800A. The terminal in its glory The full name of the device is “TeleVideo TS 800A Satellite User Station”. In the early 1980s, TeleVideo started building CP/M computers. Some were standalone,...

Background See also: The TeleVideo TVI-912 terminal - Part 1, where I gather background information about the TeleVideo TVI-912 terminal, as well as my initial cleaning and testing of the terminal The TeleVideo TVI-912 terminal - Part 2, where I fix the video control board and memory and m...

Background See also: The TeleVideo TVI-912 terminal - Part 1, where I gather background information about the TeleVideo TVI-912 terminal, as well as my initial cleaning and testing of the terminal The TeleVideo TVI-912 terminal - Part 3, where I complete the restoration of the terminal T...

Introduction I recently won a computer terminal at a local auction. I bid on it because I had been hoping to find a vintage computer terminal for a while, so I could connect it to my Altair-Duino or PiDP-11 kits. This one looked cool, I thought I would not win the auction, and then I did!1 See ...

The symptoms Recently, I started feeling that the touch of our 15-year-old Yamaha Clavinova CLP-280 in the mid-range was different: the responsiveness of the keys was not good anymore, and different from the lower and higher ranges. In addition, a couple of keys occasionally made a clacking soun...

The problem Last year, I fixed my Yamaha Clavinova CLP-280. But recently, I encountered a new problem: the damper pedal started working erratically. At first, I wasn’t sure it was a problem with the piano: could it be that I was not pressing the pedal all the way? But after a while I became sure...

Introduction In a previous post, I covered the shipping of seven boxes of typewriters in 2021. This year, I shipped another three boxes. Here is my report on this new experience. The boxes Box 1 The first box packed a Victor 3 typewriter from the 1910s. This machine was shipped within Switzer...