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February 2023 S M T W T F S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Meta
Category Archives: Hi-Fi
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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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
Bose® 901 Series II #65097 Overhaul
This Bose® 901 Series II Active Equalizer, #65097, just came through the shop for an overhaul. It worked briefly, but failed quickly on its original components. Nothing that an overhaul can’t take care of! This particular unit had its three … Continue reading
Phase Linear 2000 Upgrade and Overhaul
From the Rain City Audio Repair Blog: I recently got to work on another Phase Linear 2000 pre-amp. These well regarded components are a fantastic part of any stereo system with their high output rating, multitude of inputs and outputs, … Continue reading
Bose® 901 Series II Active Equalizer #66380 Repair
From Rain City Audio: This Bose® 901 Series II Active Equalizer #66380 came through for an overhaul just recently. The owner in California reported that he got these from his father, and the equalizer was sending only the right channel … Continue reading
Posted in Audio, Bose, Electronics, Hi-Fi, Vintage
Tagged 66380, 901, Active Equalizer, Bose, series II
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Bose® 901 Series IV Active Equalizer #265335 Overhaul
From Rain City Audio: This Bose® 901 Series IV Active Equalizer, #265335, just came through the shop for an overhaul. It’s owner bought this equalizer as a part of getting his Bose® system back up and running and sent it … Continue reading
Posted in Audio, Bose, Electronics, Hi-Fi, Projects, Vintage
Tagged 265335, 901, Active Equalizer, Bose, series IV
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1957 Grundig 5060A High Fidelity Tube Radio
From Rain City Audio: German radios are considerably less common than U.S.-made radios from the same model years, but offer excellent performance and very beautiful styling. This Grundig 5060A from 1957 does just that, offering AM Broadcast, two Shortwave, and … Continue reading
Posted in Audio, Electronics, Hi-Fi, Projects, Radio, Radios and Tubes, Vintage
Tagged 5060a, FM radio, german radio, Grundig, tube radio, vintage
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“Won’t that ruin the vintage sound?”
Audio as a hobby sits in an interesting place in the world. There are hard numbers and objective measurements made with lab equipment on one end, and on the other end you have the subjective and variable linguistic descriptions assigned … Continue reading
Posted in Audio, Commentary, Electronics, Hi-Fi, Vintage
Tagged amplifier, old stereo, rich, sound signature, stereo, tone, vintage sound, warm
3 Comments
Magnavox 1ST611R Tube Console Stereo Overhaul
From Rain City Audio: A customer recently brought me the guts from his Magnavox 1ST611R mid-century stereo console for an overhaul. He’d had the console for a while, working but with some trouble, but wanted to finally get it back … Continue reading
Posted in Electronics, Hi-Fi, Projects, Vintage
Tagged 1ST611R, chassis, chromecast, console, hifi, Magnavox, repair, stereo
2 Comments
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 →