Category Archives: Hi-Fi

1958 Zenith HF1284 (Chassis 12Z20) Hi-Fi Console Repair

Posted on September 5, 2014 by jwk

This 1958 Zenith Hi-Fi came into my shop for a full overhaul including an electrical repair, dial re-stringing, and some work on the turntable. These vintage hi-fi consoles are some of the best sounding pieces of vintage gear around, and this one’s no exception with a pair of 12″ woofers and a pair of electrostatic tweeters. Read more for details!

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Check it out at Rain City Audio Continue reading →

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1959 Zenith C845M High Fidelity AM/FM Radio

Posted on August 4, 2014 by jwk

This radio repair is cross-posted from Rain City Audio

This classic 1959 Zenith C845M radio came into the shop for a full repair after sitting unused for some time. It has the classic late ’50s styling, and a dual speaker high-fidelity design.

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It’s an 8-tube radio with a 35C5 output tube good for maybe 3W of maximum output, but it has great sound quality.

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Inside, it’ Continue reading →

Posted in Hi-Fi, Radios and Tubes, Vintage | Tagged , , , , , , , , , , | 7 Comments

Bose 901 Series II Active Equalizer #103549

Posted on July 10, 2014 by jwk

This Bose® 901 Series II Active Equalizer is a part of Rain City Audio’s parts stock and got a full rebuild with upgraded parts and complete and comprehensive testing. All transistors, resistors, film and electrolytic capacitors were replaced, a new neon bulb added, and the controls cleaned and lubricated. This very detailed repair walkthrough has photos showing the drifted carbon composition resistors which can throw off the equalizer’s curve even if all the capacitors have been replaced. Click through for many more photos!

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Bose 901 Series II Active Equalizer #114743 Repair

Posted on June 26, 2014 by jwk

This Bose 901 Series II Active Equalizer got a full overhaul in the shop with all new capacitors, resistors, transistors and silicon diodes. After a thorough control cleaning, it sounds absolutely fantastic once again and should last for a long time to come.

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Bose 901 Series I Early Production Equalizer #00570 Repair

Posted on May 27, 2014 by jwk

I just finished a new project over at Rain City Audio – Bose 901 Series I Early Production Equalizer #00570 Repair

This Bose® Active Equalizer is the earliest I’ve ever seen through the shop, serial #570. It’s very hand made and got a complete overhaul, including some upgrades to maximize performance. With all new parts to replace the worn out and failed originals after 46 years, it’s going to sound great for a long time to come.



Check it out at http://www.raincityaudio.us/blog/bose-901-series-i-early-production-equalizer-00570-repair! Continue reading →

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Bose 901 Series I Active Equalizer #54925 Repaired

Posted on May 7, 2014 by jwk

I just finished a new project over at Rain City Audio – Bose 901 Series I Active Equalizer #54925 Repaired

This Bose Active Equalizer #54925 was completely refurbished, received upgraded output capacitors, and sent on to its new home in California where it will sound fantastic for a long time to come.

Check it out at http://www.raincityaudio.us/blog/bose-901-series-i-active-equalizer-54925-repaired! Continue reading →

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Bose 901 Series II Active Equalizer #111058 Repair and Upgrade

Posted on April 16, 2014 by jwk

This Bose 901 Series II equalizer just came through the shop for an overhaul and upgrade. It’s in pretty good shape except for a small piece of delaminating contact paper on the side, but isn’t showing any signs of having … Continue reading →

Posted in Audio, Bose, Electronics, Hi-Fi, Projects, Stereo, Vintage | Tagged , , , , , , , , | 2 Comments

The Speaker Spotter – Speakers of Craigslist – April 11th, 2014

Posted on April 11, 2014 by jwk

There’s always something interesting for sale on Craigslist, especially in Seattle. Do click the titles to see the original postings with more photos and additional information if you’re interested – otherwise, enjoy the virtual window shopping! Rain City Audio is not … Continue reading →

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Bose Active Equalizer Model 800 Repair – Bose 800 Active Equalizer

Posted on April 9, 2014 by jwk

A new one for the shop, I recently worked on a Bose Active Equalizer model 800. This is very similar to the Bose 901 Series II active equalizer; the 800 series were Bose’s PA speaker series from the same model … Continue reading →

Posted in Audio, Bose, Electronics, Hi-Fi, Projects, Stereo, Vintage | Tagged , , , , , , , , , , , , | 12 Comments

The Speaker Spotter – Speakers of Craigslist – April 4th, 2014

Posted on April 4, 2014 by jwk

There’s always something interesting for sale on Craigslist, especially in Seattle. Do click the titles to see the original postings with more photos and additional information if you’re interested – otherwise, enjoy the virtual window shopping! Rain City Audio is not … Continue reading →

Posted in Audio, Collections, Hi-Fi, Photos, Speakers, Stereo | Tagged , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , | Leave a comment