RavenWolf Retro Tech

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Apr 24

The Osborne Executive (1984)

The Osborne Executive is one of the earliest portable computers and the one that contributed to to the demise of Osborne Computer Corp

Mike Brixius

Apr 16

Commodore 64 S-Video to HDMI (Updated)

I made an S-Video cable to connect the Commodore 64 to an HDMI monitor via an inexpensive HDMI Converter box.

Mike Brixius

Apr 8

Commodore 64 Power Supplies

The original Commodore 64 power supplies left a lot to be desired. While the circuit is a fairly straight forward linear design, one comp...

Mike Brixius

Jan 15

Common Early HP LaserJet Error Codes

When working on older printers you will often encounter cryptic error codes. These are the most common ones I encountered on HP II...

Mike Brixius

Jan 14

Common Parts for HP LaserJet II, IID, III, IIID and Apple LaserWriter II

here are a lot of parts to a printer but most problems are attributed to a select few. We have collected some of the more common parts...

Mike Brixius

Jan 14

HP LaserJet II Restoration

See some of the challenges you might face, and solutions for them, as we restore this HP LaserJet II.

Mike Brixius

Jan 1

My Favorite Tools

Here are some of the tools in my toolbox that I absolutely love. These are those few items that are a pleasure to use every time!

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