Tag Archives: Sony

Sony ST-J75 Recap and Alignment

Posted on July 31, 2015 by jwk

Cross-posted from the Rain City Audio Repair Blog: The Sony ST-J75 is a pretty well regarded, great sounding stereo FM tuner from the early ’80s. It’s one of the first forrays into digital tuning, with a frequency read-out, programmable memory, … Continue reading →

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1974 Sony STR-6200F Receiver Overhaul and Alignment

Posted on June 19, 2015 by jwk

From the Rain City Audio Repair Blog: I recently got to work on a pretty big, fairly rare Sony receiver from 1973-74: the STR-6200F. It’s a powerful receiver featuring 60W per channel of power available, with quite a few inputs … Continue reading →

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Sony TA-5650 Full Re-Cap and Adjustment

Posted on March 4, 2015 by jwk

Cross-posted from the Rain City Audio Repair Blog: I recently got to work on another of the Sony VFET line of integrated amplifiers, the Sony TA-5650. I’ve had one through the shop previously, and this one came in for the … Continue reading →

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Sony TA-5650 VFET Integrated Stereo Amplifier Overhaul

Posted on December 18, 2014 by jwk

Cross-posted from the Rain City Audio Repair Blog: I recently got to work on a very interesting piece of vintage stereo gear from the golden age of hi-fi in the ’70s, the Sony TA-5650 VFET Integrated Stereo Amplifier. It’s a … Continue reading →

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VD-1221 Replacement Substitute Diodes

Posted on November 25, 2014 by jwk

We’re lucky that these days you don’t need to stock very many diodes in the parts drawers for refurbishing most vintage gear – pretty much everything except for the main power supply rectifiers can usually be replaced with some combination … Continue reading →

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Sony TA-4650 VFET Stereo Amplifier Inspection and Upgrade

Posted on November 11, 2014 by jwk

This Sony TA-4650 was shipped to me from Canada for a shop visit on its way to its ultimate owner in California, who just bought it on eBay. He had it sent to my shop for an inspection and a … Continue reading →

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Sony TA-4650 VFET Stereo Integrated Amplifier Check-Up

Posted on September 24, 2014 by jwk

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 →

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1958 Sony TR-610 Transistor Radio Repair

Posted on May 2, 2014 by jwk

I just finished a new project over at Rain City Audio – 1958 Sony TR-610 Transistor Radio Repair

This Sony TR-610 came through the shop to have its electrolytic capacitors replaced. It was a quick service and this iconic 1958 transistor radio came back to life just in time, only having missed a few Mariners games! With up-rated replacement capacitors and a new battery, it will last for a very long time.

Check it out at http://www.raincityaudio.us/blog/1958-sony-tr-610-transistor-radio-repair! Continue reading →

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