Monthly Archives: November 2015

Bose® 402E Active Equalizer #102853 Repaired

From the Rain City Audio Repair Blog: The first Bose® 402E Active Equalizer, for the Panaray speaker system, just came through the Rain City Audio repair bench. It’s a small speaker array system, designed around similar drivers in the 901, … Continue reading

Posted in Audio, Bose, Electronics, Projects | Tagged , , , , , , , , | 5 Comments

Retrofitting Light Fixtures with New, High Efficiency LED Bulbs

I posted a while back about LED filament bulbs that use the new silicon-on-glass manufacturing process to produce Edison bulbs with thin strips of LEDs. Perfect for where you want that vintage styling of an incandescent bulb without all the … Continue reading

Posted in Commentary, Gadgets | Tagged , , , , , , , , , | 3 Comments

Service Shortcuts – November 1932

Radio Retailing brings you some helpful service shortcuts: Tube Numbering That Means Something The RMA is seriously considering a new three-character system of marking radio receiving tubes which may shortly come into general use in place of the present meaningless … Continue reading

Posted in Collections, Vintage | Tagged , , , | 1 Comment

Bose® 901 Series I Active Equalizer #51616 Repaired

From the Rain City Audio Repair Blog: Another Bose® 901 Series I Active Equalizer came through the shop for an overhaul! This one was from the very end of the Series I production run, serial #51616. This one appeared to … Continue reading

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Are Kids the Future of Ham Radio?

Bob K0NR has an alternate take on how to keep ham radio alive as many of its practitioners age up: For whatever reason, it seems that most people find themselves in a situation as an adult that causes them to say … Continue reading

Posted in Commentary, Ham Radio | Tagged , , , , , , | 1 Comment

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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KF7LZE’s Blog is now RETROVOLTAGE

KF7LZE’s Blog is now RETROVOLTAGE. Same great content, and all your old links will still work – starting in 2016, you’ll see more content here around all types of vintage electronics, hobbyist projects, and other resources in addition to KF7LZE’s … Continue reading

Posted in Commentary | 2 Comments