Category Archives: Audio

Philips High Fidelity Laboratories 673 Tuner Repair and Alignment

Posted on January 4, 2016 by jwk

From the Rain City Audio Repair Blog: This Philips 673 tuner just came through the shop for an overhaul and adjustment. It was working for the most part but the alignment had shifted and there was room for improvement on … Continue reading →

Posted in Audio, Electronics, Radio, Vintage | Tagged , , , | 3 Comments

Bose® 901 Series IV Active Equalizer #219533 Overhaul

Posted on January 2, 2016 by jwk

From the Rain City Audio Repair Blog: This Bose® 901 Series IV Active Equalizer, serial #219533, came through the shop for an overhaul. The owner was reporting the left channel went out, so it’s clearly time for an overhaul! A … Continue reading →

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HH Scott 233 Stereo Integrated Amplifier Overhaul

Posted on December 31, 2015 by jwk

From the Rain City Audio repair blog: I was lucky enough to get to work on a very nice Scott 233 stereo integrated amplifier. This example was wonderfully well preserved, coming out of a storage unit looking like it had … Continue reading →

Posted in Audio, Electronics, Radios and Tubes, Stereo, Vintage | Tagged , , , , , , | 7 Comments

Bose® 901 Series IV Active Equalizer #269557 Repaired

Posted on December 10, 2015 by jwk

From the Rain City Audio Repair Blog: Another Bose® 901 Series IV Active Equalizer came in through the shop for an overhaul recently. This one was a bit unusual, and represents a fairly significant deviation from the published service manual. … Continue reading →

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Bose® 901 Series IV Active Equalizer #221114 Repaired

Posted on December 3, 2015 by jwk

From the Rain City Audio Repair Blog: Another Bose® 901 Series IV Active Equalizer came through the shop, this one serial #221114. It’s owner reported that it had lost one channel, so it was clearly due for an overhaul. It … Continue reading →

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What do we have here?

Posted on December 1, 2015 by jwk

I was reading about how to build a capacitor checker from the December 1959 issue of Popular Electronics and stumbled across something that looked very familiar. I know that shape. Nearly identical to a Bose® 901 Series I/II cabinet, and even … Continue reading →

Posted in Audio, Bose, Collections, Commentary, DIY, Electronics, Vintage | Tagged , , , , , , , , , , , , , | 2 Comments

Bose® 402E Active Equalizer #102853 Repaired

Posted on November 30, 2015 by jwk

From the Rain City Audio Repair Blog: The first Bose® 402E Active Equalizer, for the Panaray speaker system, just came through the Rain City Audio repair bench. It’s a small speaker array system, designed around similar drivers in the 901, … Continue reading →

Posted in Audio, Bose, Electronics, Projects | Tagged , , , , , , , , | 7 Comments

Bose® 901 Series I Active Equalizer #51616 Repaired

Posted on November 23, 2015 by jwk

From the Rain City Audio Repair Blog: Another Bose® 901 Series I Active Equalizer came through the shop for an overhaul! This one was from the very end of the Series I production run, serial #51616. This one appeared to … Continue reading →

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Harman-Kardon Festival D-1000 Tube Receiver Repair

Posted on November 17, 2015 by jwk

All vintage gear has a story to tell, but something really rare and interesting recently came across the bench: the Harman-Kardon Festival D-1000. While it looks somewhat unassuming, a fairly straightforward 15-tube receiver with push-pull 6L6GC outputs and an AM … Continue reading →

Posted in Audio, Electronics, Hi-Fi, Vintage | Tagged , , , | 4 Comments

Totem Acoustic ARC Digital HD Amplifier on Kickstarter

Posted on November 16, 2015 by jwk

Totem Acoustic sent me some information about a very interesting new hifi amplifier they’re launching on Kickstarter. Based out of Montreal, they’re an established brand making hifi speakers optimized for desktop and streaming applications, and are coming out with a … Continue reading →

Posted in Audio, Commentary, Electronics, Gadgets, Hi-Fi | Tagged , , , , , , , | 2 Comments