Category Archives: Vintage

1967 Sony TFM-116L Transistor Radio Repair

Posted on July 14, 2016 by jwk

From Rain City Audio: This cute little Sony 11-transistor portable AM/FM radio, the TFM-116L, recently came through the shop. It’s owner purchased it new back in 1967 while he was stationed overseas with the armed forces, and had been listening … Continue reading →

Posted in Audio, Electronics, Radios and Tubes, Vintage | Tagged , , , | 1 Comment

1937 Admiral 488 Radio Dial Belt Repair

Posted on July 10, 2016 by jwk

From Rain City Audio: Most tube radio repairs at Rain City Audio are full overhauls, but occasionally there’s something that’s just in for minor maintenance, like this Admiral AM 488 from 1937. This radio was fully restored in exacting detail … Continue reading →

Posted in Radios and Tubes, Vintage | Tagged , | 1 Comment

Phase Linear 2000 Upgrade and Overhaul

Posted on July 3, 2016 by jwk

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 →

Posted in Audio, Electronics, Hi-Fi, Stereo, Vintage | Tagged , , , , | 1 Comment

Bose® 901 Series II Active Equalizer #66380 Repair

Posted on May 2, 2016 by jwk

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 →

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Bose® 901 Series IV Active Equalizer #265335 Overhaul

Posted on April 28, 2016 by jwk

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 →

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Bose® 901 Series I Active Equalizer #9724 Overhaul and Upgrade

Posted on April 26, 2016 by jwk

From Rain City Audio: This rare early-production Bose® 901 Active Equalizer, serial #9724, came through the shop recently for an overhaul. It’s owner reported that both channels would cut out intermittently, the switches were noisy, and the power lamp was … Continue reading →

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Bose® 901 Series IV Active Equalizer #223227 Overhaul

Posted on April 24, 2016 by jwk

From Rain City Audio: This Series IV Active Equalizer, #223227, just came through for an overhaul. The owner reported it wasn’t making any sounds, just providing a DC offset on the output jacks which was giving his power amplifier some … Continue reading →

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Dynaco FM-3 High Fidelity Tuner Repair

Posted on April 22, 2016 by jwk

I recently got to work on a very interesting Dynaco FM tuner, the FM-3, which was in the shop for an overhaul. The owner reported it wasn’t working that well anymore, which isn’t a surprise given it’s age. These are good … Continue reading →

Posted in Audio, Electronics, Projects, Radio, Radios and Tubes, Stereo, Vintage | Tagged , , , , | 6 Comments

Bose® 901 Series I Active Equalizer #7790 Repair

Posted on April 20, 2016 by jwk

From Rain City Audio: This rare early-production Bose® 901 Series I Active Equalizer, serial #7790, came through the shop recently for an upgrade. It’s original owner bought this new in 1969 and kept it in use until it began to … Continue reading →

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Bose® 901 Series I Active Equalizer #28322 Repaired

Posted on April 18, 2016 by jwk

From Rain City Audio: This Bose® 901 Series I Active Equalizer #28322 came through the shop for an overhaul. The original series, these Series I Active Equalizers have the oldest electronic components which are nearly universally out of their service … Continue reading →

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