Monthly Archives: July 2015

Sony ST-J75 Recap and Alignment

Posted on July 31, 2015 by jwk

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, and seek/scan functionality and variable muting driven by … Continue reading →

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The Hewlett-Packard 5451A Fourier Analyzer

Posted on July 27, 2015 by jwk

1972: the year launching the Space Shuttle program, the completion of the monument at Stone Mountain, Watergate, the first female FBI agents to join the force….and the new HP 5451A Fourier Analyzer, bringing unparalleled performance to the worlds of acoustic … Continue reading →

Posted in Electronics, Photos, Test Equipment, Vintage | Tagged , , , , , , , , | 1 Comment

Stereo Aficionados

Posted on July 25, 2015 by jwk
Posted in Audio, Commentary, Stereo | Tagged , , , , , | 1 Comment

Old rocker complains about new technology

Posted on July 15, 2015 by jwk

According to Rolling Stone, Neil Young is pulling his catalog from all streaming music services over complaints about the sound quality. I don’t see this impacting me personally since I don’t listen to him and indeed can’t even name a … Continue reading →

Posted in Audio, Commentary, Ideas, Music | Tagged , , , , , , , , , , , , | 8 Comments

1950s Motorola Modded Standalone Tube Amplifier Measurements

Posted on July 6, 2015 by jwk

I had an unusual project through the shop recently. It’s a Magnavox tube amp from the late 1950s. The owner brought it in reporting he’d purchased the amplifier, pulled from a damaged console stereo and modified to be a standalone … Continue reading →

Posted in Audio, DIY, Electronics, Hi-Fi, Projects, Radios and Tubes, Vintage | Tagged , , | 3 Comments