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Author Archives: jwk
Best IoT Dev Board?
I’m looking into getting started with my own IoT project — in my case, I’m interested in building a security system which takes a few different inputs into account – potentially including some ML image recognition – before deciding what … Continue reading
Bose® Wave Radio AWR1-1W Repair
From the Rain City Audio Repair Blog: A Bose® Wave Radio, model AWR1-1W, just came through the shop for a repair. The radio had been working okay all these years but had recently stopped receiving any stations and instead was … Continue reading
1938 General Electric G-56 Repair
From the Rain City Audio Repair Blog: Rain City Audio recently had the occasion to work on a 1938 GE radio, the model G-56. Since these are rather large floor model radios, the owner removed the chassis and speaker from … Continue reading
Posted in Projects, Radio
Tagged -56, 1938, antique radio, g-56, GE, general electricg, vintage radio
2 Comments
A Surprise in a Re-Stuffed Capacitor
I was recently re-stuffing some capacitors for a radio. It’s not something I do often, but I’ve accumulated a pile of pulled vintage caps over the years so I have some on hand if a customer requests the most detailed … Continue reading
1930 Crosley Arbiter Radio Repair
From the Rain City Audio Repair Blog: This 1930 Crosley radio came through the shop for a repair recently. The owner dropped off the chassis and turntable, then took the cabinet for professional refinishing. At some point in this radio’s … Continue reading
Posted in Audio, Electronics, Radio, Radios and Tubes, Vintage
Tagged 1930, arbiter, Crosley, radio, repair
5 Comments
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! Some digging around found an explanation in the June 1958 issue of Popular … Continue reading
Posted in Audio, Electronics, Gadgets, Hi-Fi, Vintage
Tagged automatic, hi-fi power, music minder, popular mechanics, record player, turntable power
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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. This one came through the shop after being stored in a garage … Continue reading
Posted in Audio, Electronics, Projects, Radios and Tubes, Vintage
Tagged 400, Fisher, overhaul
4 Comments
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. This … Continue reading
Would you look at that!
It’s pretty, but this 12BA6 tube has amplified for the last time. Vacuum failure has led to a gas intruding into the vacuum, and it makes a great light show when it’s being tested! As cool as it looks, this would cause … Continue reading
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! It’s a cute little single-ended stereo tube amp using a pair of 6AD10 … Continue reading →