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MIT’s new way to make metal could significantly lower air pollutants — @TechCrunch @hirimalibe

Serendipity has long been a staple of scientific study, and a new discovery by MIT is no exception. Researchers at the school were trying to build better batteries, but instead found a better way to smelt metal.

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Tech Insights

Music Minder Automatic Power Controller for Hi-Fi Systems

Mixed in with some other gear I’m servicing, I found this old Music Minder power box. It’s not all that obvious what it’s for at first glance! 210 more words

Vintage

Reviewing the Gemtune APPJ PA1501A 6AD10 Stereo Tube Amplifier

I recently picked up an interesting little tube amp via a group buy on Massdrop, the Gemtune APPJ PA1501A stereo tube amplifier. Try saying that three times fast! 1,416 more words

Electronics

Fisher 400 Wide-Band FM Multiplex Receiver Overhaul

From Rain City Audio:

The Fisher 400 is a very well engineered, and very collectible, vintage stereo receiver with an iconic champagne faceplate and prominent bank of controls. 803 more words

Vintage

Bose® 901 Series VI #181070 Repair

From Rain City Audio:

This Bose® 901 Active Equalizer, Series VI, came into the shop recently. These are some of the most recently produced Active Equalizers, although they’re still potentially a few decades old at this point in time. 41 more words

Vintage

Programming the ATTINY85-20SUR

This post ties together my two previous posts, “ATtiny85 SOIC chip Program Adapter” and “Universal programmer dusted off“. I inserted the ATTINY85-20SUR nested in the SOIC Adapter Socket OTS-20-1.27-01,  plugged it into my… 102 more words

Electronics

ATtiny85 SOIC chip Program Adapter

When I purchased some surface mount ATtiny85 microcontrollers I didn’t realize that Atmel sold them in several widths, so I purchased the incorrect size SOIC programming adapter that would have enabled me to program the chip prior to soldering it onto the PCB. 164 more words

Electronics