Tag Archives: hifi

The Speaker Spotter — August 14, 2026

Posted on August 14, 2026 by retrovoltage

A recurring feature curating interesting speakers for sale on Craigslist from around the Pacific Northwest. Links to Craigslist postings might go down at any time if they’re sold or pulled from sale. Some really interesting, highly unusual things in today’s … Continue reading →

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Merry Christmas from Retrovoltage!

Posted on December 25, 2015 by retrovoltage

Radio & Television News, December 1954

Posted in Collections, Commentary, Vintage | Tagged , , , , , , , | 4 Comments

Merry Christmas from Retrovoltage!

Posted on December 25, 2014 by retrovoltage

Season’s Greetings!

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First Ever Bose 901 Series 1 Active Equalizer Repair

Posted on July 25, 2012 by retrovoltage

This post is almost 15 years old! Check out this much more recent round-up of Bose 901 Series I and II Active Equalizer repair tips and tricks, and leave a comment if you have any feedback. This post was one … Continue reading →

Posted in Electronics, Projects, Speakers, Vintage | Tagged , , , , , , , , , , , , , , , , | 38 Comments