Category Archives: Uncategorized

Upcoming Projects for 2026

Posted on June 2, 2026 by retrovoltage

Having had a chance to unpack some of my shop from storage and settle in to the new space, I’ve got an idea of what projects I’ll be working on myself in between projects with my shop partner. Bose Active … Continue reading →

Posted in Uncategorized | Tagged , , , , , , , , | Leave a comment

The Speaker Spotter — May 29, 2026

Posted on May 29, 2026 by retrovoltage

A recurring feature curating interesting speakers for sale on Craigslist from around the Pacific Northwest. Links to Craigslist postings might go down at any time if they’re sold or pulled from sale. This week’s report is KEF heavy, with a … Continue reading →

Posted in Uncategorized | Leave a comment

DBX SFC-10 Soundfield Imaging Controller Repair

Posted on May 23, 2026 by retrovoltage

I’ve had this DBX SFC-10 Soundfield Imaging Controller in my stash for a while, and figured I’d ease into repair work again with a relatively easy project. I’ve always been interested in speakers which use an active equalizer – the … Continue reading →

Posted in Uncategorized | Leave a comment

The Speaker Spotter — May 22, 2026

Posted on May 22, 2026 by retrovoltage

A recurring feature curating interesting speakers for sale on Craigslist from around the Pacific Northwest. Links to Craigslist postings might go down at any time if they’re sold or pulled from sale. Pair of Vintage Bose StudioCraft Tower Speakers $200 … Continue reading →

Posted in Uncategorized | Leave a comment

The Speaker Spotter — May 15, 2026

Posted on May 15, 2026 by retrovoltage

A recurring feature curating interesting speakers for sale on Craigslist from around the Pacific Northwest. Links to Craigslist postings might go down at any time if they’re sold or pulled from sale. JBL L65 “Jubal” — $1,800 (Kennewick, WA) JBL’s … Continue reading →

Posted in Uncategorized | Leave a comment

Returning from Hiatus – 2026

Posted on May 14, 2026 by retrovoltage

It’s been a few years since I stepped away from electronics repair, but I’m excited to announce that Retrovoltage is once again back in action and working on projects. I don’t expect to take direct customer work any time soon … Continue reading →

Posted in Uncategorized | Leave a comment

ARCANE RADIO TRIVIA: Electric Banana

Posted on February 13, 2016 by retrovoltage

Arcane Radio Trivia found a really cool banana-inspired portable record player, allegedly from the Andy Warhol era. Plays in any position…even upside down! I’d love to see one of these in person. I wonder how many were ever manufactured in … Continue reading →

Posted in Uncategorized | 2 Comments

Service Shortcuts December 1932

Posted on December 30, 2015 by retrovoltage

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 →

Posted in Uncategorized | Leave a comment

Sherwood S3000-V Stereo FM Tuner Repair

Posted on September 28, 2015 by retrovoltage

This Sherwood FM Stereo tuner came into the shop recently. It’s owner successfully completed a re-cap of the unit, but the specialized tools for performing an accurate FM Stereo alignment are beyond the reach of most hobbyists, and so he … Continue reading →

Posted in Uncategorized | 10 Comments

Eric Engineering Model 357 High-Fidelity FM Tuner

Posted on June 23, 2015 by retrovoltage

I recently got to work on something quite unusaul, the Eric Engineering model 357 hi-fidelity tuner. Built by obscure outfit Eric Engineering in Santa Monica, CA in 1961, there’s relatively little known about these units. It’s a fairly simple ratio-detector … Continue reading →

Posted in Uncategorized | 5 Comments