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

Harman-Kardon Festival D-1000 Tube Receiver Repair

All vintage gear has a story to tell, but something really rare and interesting recently came across the bench: the Harman-Kardon Festival D-1000. While it looks somewhat unassuming, a fairly straightforward 15-tube receiver with push-pull 6L6GC outputs and an AM … Continue reading

Posted in Audio, Electronics, Hi-Fi, Vintage | Tagged , , , | 4 Comments

Totem Acoustic ARC Digital HD Amplifier on Kickstarter

Totem Acoustic sent me some information about a very interesting new hifi amplifier they’re launching on Kickstarter. Based out of Montreal, they’re an established brand making hifi speakers optimized for desktop and streaming applications, and are coming out with a … Continue reading

Posted in Audio, Commentary, Electronics, Gadgets, Hi-Fi | Tagged , , , , , , , | 2 Comments
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