Find:
About Me
Blogs
- AC8JO
- Antique Finds of J&J
- Antique Radio Blog
- Arcane Radio Trivia
- Audio Tweak
- Audioklassiks
- Broadcast Law Blog
- BuildLounge
- Classic Receivers
- Coffman Labs Blog
- Confessions of a Part-Time Audiophile
- Duanes Radios
- EEVBlog
- Engineering Radio
- Glowbugs Times
- Glowbugs Web
- Guitar Fool
- Hack a Day
- HeavyDIY
- High on Solder
- Ilektronx
- KN0CK
- MicroSyl
- Nick's Radio Corner
- Old Stock Audio
- Pragmaddux
- Radio Stuff
- Radio Time Traveller
- Richard Sears, Vintage Electronics
- Seventies Stereo
- The Paleotechnologist
- The Signal Path
- Tube Addict
- TubeSound
Friends
Resources
- 901
- Active Equalizer
- amateur radio
- amplifier
- android
- Antique
- antique radio
- Bose
- Bose 901
- Bose Active Equalizer
- Bose Equalizer
- bose repair
- capacitor
- capacitor replacement
- cost engineering
- Craigslist
- eBay
- electronics
- Equalizer
- fried electronics
- GE
- grunow
- grunow 589
- grunow chassis 5-U
- grunow radio restoration
- ham radio
- hf
- hi-fi
- hifi
- HP
- KN0CK
- old radio
- oscilloscope
- overhaul
- philco
- photos
- power supply
- projects
- radio
- rca
- receiver
- repair
- restoration
- RTL-SDR
- RTLSDR
- SDR#
- seattle
- seattle vintage radio repair
- Series 1
- series I
- series II
- series IV
- shortwave
- soldering
- Sony
- Speakers
- speaker spotter
- stereo
- streaming
- t-mobile
- test equipment
- transistor
- transistor radio
- tube
- Tube Amp
- tube radio
- up-converter
- Upconverter
- vacuum tube
- vintage
- vintage ad
- vintage radio
- Westinghouse
- zenith
Categories
April 2021 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 29 30 Meta
Tag Archives: rain city audio
Bose® 901 Series II Active Equalizer #68953 Repair
This Bose® 901 Series II Active Equalizer was originally a European unit, designed for a 240V mains supply. Most if not all 240V equalizers with U.S. style plugs were sold on military bases in Germany and elsewhere, and returned with their … Continue reading
Posted in Audio, Bose, Electronics, Projects
Tagged Active Equalizer, Bose, rain city audio, series II
Leave a comment
Bose® 901 Series V Active Equalizer #130806 Repaired
Cross-posted from the Rain City Audio Repair Blog: More and more, even the newer generation Bose® Active Equalizers are showing signs of age. Series V and VI have been making appearances here and there, but seem to have picked up quite … Continue reading
Posted in Audio, Bose, Electronics, Projects
Tagged Active Equalizer, Bose, rain city audio, repair
Leave a comment
Sony TA-4650 VFET Stereo Integrated Amplifier Check-Up
This repair cross-posted from Rain City Audio: I recently had this Sony TA-4650 in the shop for a check-up. It was reportedly giving static in one channel. That’s trouble on an amp like this – Sony used an ambitious new technology, the VFET, a … Continue reading
Posted in Audio, Electronics, Hi-Fi, Stereo, Vintage
Tagged amplifier, check-up, cleaning, rain city audio, repair, Sony, stereo, Stereo Integrated Amplifier, TA-4650, VFET
Leave a comment
1931 Westinghouse WR-8 Columaire Antique Radio Repair
I recently got to work on another beautifully reconditioned Westinghouse WR-8 Columaire radio all the way from Bellingham. It was originally in for service with the SPARK Museum, but the repair technician reportedly suffered some health complications and was unable to … Continue reading
Posted in Electronics, Projects, Radios and Tubes, Vintage
Tagged antique radio, capacitor, capacitor replacement, clock, clock radio, columnaire, grandfather clock, grandfather clock radio, radio, rain city audio, repair, restoration, tube radio, vacuum tube, vintage, vintage radio, Westinghouse, wr-8, WR-8 Columnaire
2 Comments