Tag Archives: capacitor replacement

Bose Equalizers on eBay Need Service Too: A Photo Comparison

Posted on March 31, 2014 by jwk

You’ve had your Bose 901 Series I or Series II speakers in storage for a few years, the Active Equalizer packed away with them and now you’ve pulled them out to set up your vintage system once again. Great – … Continue reading →

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1938 Zenith 5-S-220 eBay Tune-Up Special

Posted on March 26, 2014 by jwk

I’ve had the opportunity to work on several very nice Zenith radios lately and this one is especially interesting. It’s the Zenith 5-S-220 Cube. This is the first time I’ve seen one of these in person, they’re somewhat uncommon. Electrically, it’s a … Continue reading →

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Craigslist and eBay Antique Radios – Be Careful!

Posted on March 19, 2014 by jwk

It’s not uncommon to run across antique or vintage radios on Craigslist, eBay and other sales site which are advertised as “working”, “repaired” or “restored”. Many times these are in fact professionally reconditioned items – just like you read about … Continue reading →

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Bose 901 Series I Active Equalizer #30924 Repaired

Posted on March 18, 2014 by jwk

I recently got to work on another Bose 901 Series I Active Equalizer, Serial #30924, which needed some service. It’s coming from the original owner who purchased them new in 1970, they went into storage about 10 years ago when … Continue reading →

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Bose 901 Series II Active Equalizer #120325 Repaired

Posted on March 13, 2014 by jwk

I recently had the opportunity to work on another Bose 901 Active Equalizer, Series II. This particular model had been in service for a long time in active use and was showing its age. It was sent back to Bose … Continue reading →

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Bose 901 Active Equalizer #20262 Repaired!

Posted on March 4, 2014 by jwk

This Bose 901 Series I Active Equalizer came to me from North Carolina, where it had been stored in original packaging for many years. Unfortunately even with careful storage the equalizer wasn’t in running condition and it looks like the … Continue reading →

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Bose 901 Series I Early Production Equalizer Full Repair

Posted on February 24, 2014 by jwk

I just had another Bose 901 Series I equalizer through the shop for the standard service. It didn’t have a visible serial number, but is definitely a very early production version. The Active Equalizer was revised once through the model’s … Continue reading →

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Ohm Acoustics Model D Speaker Refurbishment

Posted on February 21, 2014 by jwk

Classic speakers are always a delight to work on, and speakers have capacitors and other parts which require service, too. Over the years those components can fail and result in poor sound and even potential speaker damage. In this case, … Continue reading →

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1945 Westinghouse Little Jewel “Refrigerator” H-126 Radio Repair

Posted on February 18, 2014 by jwk

A local client brought me a radio which was in the family for many years, a cute little “fridge radio” made by Westinghouse from 1945-1947. The same year Westinghouse released this new model of home refrigerator, they also released this Little … Continue reading →

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1962 Zenith MK2670 Classic Tube Hi-Fi Console Stereo Repaired

Posted on February 15, 2014 by jwk

A version of this article appears in the October 2014 issue of Nuts and Volts magazine. I recently got to work on something a little bit different – a tube hi-fi stereo console! This particular one, a 1962 Zenith MK2670, was a very high-end … Continue reading →

Posted in Audio, Projects, Radios and Tubes, Stereo, Vintage | Tagged , , , , , , , , , , , , | 26 Comments