Tag Archives: repair

Bose® 901 Series IV Active Equalizer #253288 Overhaul

This Bose® 901 Series IV Active Equalizer came through the shop for a full overhaul. Inevitably over the years, various parts wear out and degrade and can make the equalizer sound bad – or not work at all. Without the … Continue reading

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Remember: Please Take the Workbench Survey!

I mentioned this a week ago, and will continue to do so through the new year – I’ve got a great set of responses so far but would love some more to make the data even more interesting! Do you … Continue reading

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Electronics Repair Equipment Survey

Do you play with electronics as a hobby, are you a freelance repair technician, or do you work for an established repair shop? Take the Electronics Workbench Equipment Survey! Share a little bit about what equipment you regularly use to … Continue reading

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1937 Zenith 5-S-126 Tune-Up

From the Rain City Audio Repair Blog: This very nice Zenith 5-S-126 came through the shop a little while ago. It was originally purchased by a local collector from eBay already restored and playing, and served well for a couple … Continue reading

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Adding Capture to a Vintage Scanning Electron Microscope

Applied Science over at YouTube has a great video about adding a capture capabilities to a vintage scanning electron microscope, including some great videos of that instrument in action. Check it out:

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Creek 4140 S2 Overhaul and Voltage Conversion

From the Rain City Audio Repair Blog: This Creek 4140 S2 amplifier is a bit newer than most through the shop, although it’s getting up there. This particular one was constructed in 1989, and came via eBay from the UK … Continue reading

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Sony ST-J75 Recap and Alignment

Cross-posted from the Rain City Audio Repair Blog: The Sony ST-J75 is a pretty well regarded, great sounding stereo FM tuner from the early ’80s. It’s one of the first forrays into digital tuning, with a frequency read-out, programmable memory, … Continue reading

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Bose® 901 Series V Active Equalizer #130806 Repaired

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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Philco 39-45 Retrofit to 40-201 Cabinet Vintage Radio Repair

Cross-posted from the Rain City Audio Repair Blog: A local customer approached me with his family’s Philco 40-201 vintage radio to be restored back to working condition. It had sat for several decades, very well preserved, but ultimately needed some … Continue reading

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Bose 901 Series 1 Active Equalizer #46453 Repair

Cross-posted from the Rain City Audio Repair Blog: Another Bose® 901 Series I Active Equalizer came through the ship, Serial #46453. It came in with a variety of issues, just not sounding like it used to, and the owner requested … Continue reading

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