Category Archives: Vintage Bitage

Vintage computing and the aging bits therein.

PS/2 Model P70 Floppy Drive Repair

I obtained an IBM PS2 Model 70 luggable computer last year and it worked well except for the floppy drive.  PS2 floppy drives are notorious for short lifespans. Here’s how I repaired a PS/2 floppy.
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Filed under IBM, Vintage Bitage

CosmacCalc: The Cosmac VIP’s place in Spreadsheet History

What does a Cosmac VIP have to offer to an exhibit on the history of spreadsheets?  That’s a really good question with an interesting answer.

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Filed under COSMAC, VCFE 10.0, Vintage Bitage

VisiCalc on a PET 8032

My exhibit for VCFE 10.0 was to include a bunch of old computers running early spreadsheet programs.  I planned to include the closest representations possible for me of the Vintage Computer “Holy Trinity”- The Apple ][, TRS-80, and Commodore PET – all running the original VisiCalc. The PET would prove the toughest.

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Filed under PET, VCFE 10.0, Vintage Bitage

Cleaning a PET 8032 Keyboard for Vintage Computer Festival East 10.0


This is one of the computers I intended to run VisiCalc on for VCFeX.  It is a CBM 8032 that I bought locally from a Commodore executive who had stored it in a closet since 1985.  I unboxed it last year only to do a quick inspection and power on test.  The keys fought me while typing a hello world basic program so I knew for a while the keyboard was going to needed attention.  Now that a real use was at hand, it was time to make that keyboard sing.

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Filed under PET, Vintage Bitage

TRS-80 Model I 48K Level II System – Bring up and repair

This is the story of bringing up and repairing a TRS-80 that had not been powered on in 30 years.

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Filed under TRS-80, Vintage Bitage

Unboxing a fine CBM 8032 System

In the Summer of 2013 I picked up this Commodore 8032 set locally from a ex-Commodore executive.

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Filed under Vintage Bitage

GRiD 1530: My first vintage computer project

 100_4147In July 2012 I had a stroke of luck finding this GRiD 1530 at a local recycling facility.  I brought it home and found that it was a very nice item, with some accessories, including battery, power supply and external floppy drive.

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Filed under PC Compatibles, Vintage Bitage