Monthly Archives: July 2012

Twitter failed. Hard.

So badly, in fact, it looks like their scripting mark-up isn’t even being processed.   Not what I expected to see from such a web giant. via Boing Boing Advertisements

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Bose 901 Series 1 Active Equalizer Repair [Vintage Hi-Fi]

(Need your Active Equalizer repaired? Visit Rain City Audio) While some other projects have been pending information and parts, I’ve had a chance to work on the Bose 901 Series 1 equalizer that’s been on my bench for a couple … Continue reading

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How to Make a Vacuum Tube from Scratch

This French radio amateur takes the classical ingenuity of radio amateurs everywhere to an incredible level, creating his own triodes similar to those used in the 1920s from scratch. Watch!

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Identifying Your Bose 901 Series 1 Equalizer [Vintage Hi-Fi] [Production Runs]

Bose 901 Series I Active Equalizers came in two varieties, which can be used interchangeably, but have fairly different circuit designs. It’s simple to tell them apart for ordering parts for a repair with a quick inspection of the inside. Both … Continue reading

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Wanted: Band Switch Rocker Arm Lever from Grundig 5399 or 8000-series Radio [Repair]

I’m having trouble coming up with a replacement part necessary to bring my client’s Grundig 5399U/S back to life, so I turn to the Internet to help. Part of the band switch assembly is a rocker arm which spans the … Continue reading

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July Projects

July is always a pretty busy month – it’s finally summer in the Pacific Northwest and so my attention is divided between my electronics work and spending time in the great outdoors. I have a few things in the pipeline for … Continue reading

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