Monthly Archives: June 2015

Bose® 901 Series VI Active Equalizer #179043 Repair

Posted on June 29, 2015 by jwk

Cross-posted from the Rain City Audio Repair Blog: Series VI Active Equalizers are the newest of the set and is on it’s second revision of production even today. Even still, the earliest ones are from the 1990s, and that’s getting … Continue reading →

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Bose® 901 Series V Active Equalizer #130806 Repaired

Posted on June 24, 2015 by jwk

Cross-posted from the Rain City Audio Repair Blog: More and more, even the newer generation Bose® Active Equalizers are showing signs of age. Series V and VI have been making appearances here and there, but seem to have picked up quite … Continue reading →

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Eric Engineering Model 357 High-Fidelity FM Tuner

Posted on June 23, 2015 by jwk

I recently got to work on something quite unusaul, the Eric Engineering model 357 hi-fidelity tuner. Built by obscure outfit Eric Engineering in Santa Monica, CA in 1961, there’s relatively little known about these units. It’s a fairly simple ratio-detector … Continue reading →

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1974 Sony STR-6200F Receiver Overhaul and Alignment

Posted on June 19, 2015 by jwk

From the Rain City Audio Repair Blog: I recently got to work on a pretty big, fairly rare Sony receiver from 1973-74: the STR-6200F. It’s a powerful receiver featuring 60W per channel of power available, with quite a few inputs … Continue reading →

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Bose® 901 Series II Active Equalizer #117185 Overhaul

Posted on June 15, 2015 by jwk

From the Rain City Audio Repair Blog: Another Bose® 901 Series II Active Equalizer came through for an overhaul and some upgrades. These equalizers are necessary to provide the curve shaping needed to get the great sound the 901 Direct/Reflecting … Continue reading →

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Can you say high ESR? [dead cap]

Posted on June 11, 2015 by jwk

That’s right, 35 Ohms ESR. No surprise, every MIEC cap I’ve ever seen has been garbage.

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Speakers of Craigslist: June 3rd, 2015

Posted on June 3, 2015 by jwk

It’s back – the Speakers of Craigslist, a periodic round-up of what’s interesting on my local Craigslist these days. Sorry for the hiatus, putting these together is a bit of work! As always, I am not affiliated with any of … Continue reading →

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Hands On with the new Acer Chromebook 13

Posted on June 2, 2015 by jwk

I was recently in the market for a new laptop to replace my aging ProBook 4415S. It was a middle of the road HP business laptop from 2009, and over the years I’d upgraded the RAM to 4GB and installed … Continue reading →

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