Author Archives: retrovoltage

Philips High Fidelity Laboratories 673 Tuner Repair and Alignment

This Philips 673 tuner just came through the shop for an overhaul and adjustment. It was working for the most part but the alignment had shifted and there was room for improvement on the sound quality. Philips designed this tuner … Continue reading →

Posted in Audio, Electronics, Radio, Vintage | Tagged , , , | 3 Comments

HH Scott 233 Stereo Integrated Amplifier Overhaul

I was lucky enough to get to work on a very nice Scott 233 stereo integrated amplifier. This example was wonderfully well preserved, coming out of a storage unit looking like it had just left the showroom floor. Unfortunately, though, … Continue reading →

Posted in Audio, Electronics, Radios and Tubes, Stereo, Vintage | Tagged , , , , , , | 7 Comments

Service Shortcuts December 1932

Due to a technical problem, this post was initially published with no content on Tuesday, December 29th. Retrovoltage regrets this error. Hints for the service shop, from December 1932’s Radio Retailing: A.V.C. Accessory for Screen-Grid Sets by Joseph E. Soos A … Continue reading →

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Merry Christmas from Retrovoltage!

Radio & Television News, December 1954

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What’s On Your Workbench? 2015 Edition

Updated 2026 here. People ask me what kind of gear I use at Retrovoltage for projects. So, here we go: While it’s by no means the best-equipped workbench out there, it has a good mix of lab- and service-grade equipment which … Continue reading →

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It’s Beginning To Look A Lot Like Christmas

Bring the Sound of Christmas Into Your Home with RCA Victor Radio

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Collector or Bargain-Hunter? There are Craigslist deals out there.

If you’re like me and have a liking for vintage electronics, you’ll know that they turn up in a lot of places. Craigslist tends to be a pretty good spot for radios and even piles of tubes from time to … Continue reading →

Posted in Commentary, Test Equipment, Vintage | Tagged , , , , , | 7 Comments

Make Christmas Special This Year with Allied Radio!

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Enjoying the View

I don’t know about you, but I think a huge satellite dish like that that would be a pretty cool, retrofuturistic yard decoration in addition to being interesting for a lot of other applications.

Posted in Collections, Projects | Tagged , , , , , , , | 5 Comments

What do we have here?

I was reading about how to build a capacitor checker from the December 1959 issue of Popular Electronics and stumbled across something that looked very familiar. I know that shape. Nearly identical to a Bose® 901 Series I/II cabinet, and even … Continue reading →

Posted in Audio, Bose, Collections, Commentary, DIY, Electronics, Vintage | Tagged , , , , , , , , , , , , , | 2 Comments