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Category Archives: Commentary
Make Christmas Special This Year with Allied Radio!
Posted in Collections, Commentary, Vintage
Tagged Ad, allied radio, christmas, vintage ad
3 Comments
What do we have here?
I was reading about how to build a capacitor checker from the December 1959 issue of Popular Electronics and stumbled across something that looked very familiar. I know that shape. Nearly identical to a Bose® 901 Series I/II cabinet, and even … Continue reading
Posted in Audio, Bose, Collections, Commentary, DIY, Electronics, Vintage
Tagged 901, Bose, cosmos industries, direct, direct/reflecting, mystery, mystery speaker, predecessor, prototype, reflected wave, reflecting, series I, speaker, Speakers
2 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 cfl, corn led, LED, led bulbs, led edison bulb, led filament, led floodlight, led lighting, light bulb, lighting
3 Comments
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 amateur radio, disaster communications, electronics, emergency communications, ham radio, hobby, kids
1 Comment
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
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 amplifier, ARC, bluetooth, digital amplifier, kickstarter, streaming, totem acoustic, usb
2 Comments
The Speaker Spotter – November 6th, 2015
Today’s Speaker Spotter showing the most interesting speakers for sale on the local Craigslist has a number of rare, unusual, and high-end speakers you’re not likely to find anywhere else. As always, I’m not affiliated with any of these sellers, … Continue reading
Mailbag: What’s the best multitester for vintage radios?
I recently got this question in the mailbag, and it seemed like a good one to answer: What’s the best multitester for vintage radio repair? That’s actually a tougher question than it seems. The short answer? Well…it depends a bit, but … Continue reading
Posted in Commentary, DIY, Electronics, Gadgets, Test Equipment
Tagged chanalyst, multitester, signal tracer, test equipment, vintage radio repair
2 Comments
The Speaker Spotter – September 30th, 2015
It’s back! Another installment in this occasional series, “The Speaker Spotter”, picking out the most interesting speakers available on my local Craigslist. Today’s Speaker Spotter focuses on bookshelf speakers for the best sound possible in a small package. As always, … Continue reading
Posted in Audio, Collections, Commentary, Hi-Fi, Speakers
Tagged sale, speaker spotter, Speakers, speakers of craigslist, vintage speakers
1 Comment
Collector or Bargain-Hunter? There are Craigslist deals out there.
If you’re like me and have a liking for vintage electronics, you’ll know that they turn up in a lot of places. Craigslist tends to be a pretty good spot for radios and even piles of tubes from time to … Continue reading →