Category Archives: Projects

Before and After: GE Musaphonic T-210B Radio

Posted on May 31, 2011 by jwk

I recently got around to fixing up my GE Musaphonic T-210B, a relatively nice tabletop tube radio from 1963. It has two medium-sized speakers, AM and FM with automatic frequency correction with 8 tubes. When I was a very young … Continue reading →

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Newest Old Radio: a 1920s Battery Set, the Dayfan OEM-7

Posted on May 27, 2011 by jwk

A new addition to my collection arrived today. I’ve been reading the Elements of Radio to learn radio theory the way it was taught in the 1930s and 1940s, and many of the reference circuits in the book are the … Continue reading →

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Repairing Antique Radio Electrics from Start to Finish (5) – Grunow 589

Posted on May 7, 2011 by jwk

Update: The series is complete. For more articles and information, visit these other posts: Part 1: Identification and Task List Part 2: Intake Checks Part 3: Capacitor Replacement Part 4: Resistors and Controls Part 5: First Power-Up Part 6: Socket … Continue reading →

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Repairing Antique Radio Electrics from Start to Finish (4) – Grunow 589

Posted on May 3, 2011 by jwk

Update: The series is complete. For more articles and information, visit these other posts: Part 1: Identification and Task List Part 2: Intake Checks Part 3: Capacitor Replacement Part 4: Resistors and Controls Part 5: First Power-Up Part 6: Socket … Continue reading →

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Repairing Antique Radio Electrics from Start to Finish (3) – Grunow 589

Posted on April 26, 2011 by jwk

Update: The series is complete. For more articles and information, visit these other posts: Part 1: Identification and Task List Part 2: Intake Checks Part 3: Capacitor Replacement Part 4: Resistors and Controls Part 5: First Power-Up Part 6: Socket … Continue reading →

Posted in Projects, Radios and Tubes, Vintage | Tagged , , , , , , , , , , | 8 Comments

Repairing Antique Radio Electrics from Start to Finish (2) – Grunow 589

Posted on April 22, 2011 by jwk

Update: The series is complete. For more articles and information, visit these other posts: Part 1: Identification and Task List Part 2: Intake Checks Part 3: Capacitor Replacement Part 4: Resistors and Controls Part 5: First Power-Up Part 6: Socket … Continue reading →

Posted in Projects, Radios and Tubes, Vintage | Tagged , , , , , , , , , , , , | 7 Comments

Repairing Antique Radio Electrics from Start to Finish (1) – Grunow 589

Posted on April 20, 2011 by jwk

Update: The series is complete. For more articles and information, visit these other posts: Part 1: Identification and Task List Part 2: Intake Checks Part 3: Capacitor Replacement Part 4: Resistors and Controls Part 5: First Power-Up Part 6: Socket … Continue reading →

Posted in Projects, Radios and Tubes, Vintage | Tagged , , , , , | 10 Comments

Stromberg-Carlson 520-PG: After Action Report

Posted on April 18, 2011 by jwk

My Stromberg-Carlson 520-PG (previous parts 1 2) is finally finished! The radio came out ahead of my expectations, even, and was delivered to its new home yesterday where I expect it will continue to serve for years to come. See … Continue reading →

Posted in Projects, Radios and Tubes, Vintage | Tagged , , , , , | 2 Comments

Stromberg-Carlson 520-PG Nearing Completion

Posted on April 13, 2011 by jwk

My current main project, refurbishing my Stromberg-Carlson 520-PG radio (which has been a fair amount of fun so far) is nearing completion. I’ve just completed an IF alignment, which greatly improved the sound quality and volume and general performance. Radios … Continue reading →

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Refurbishing Vintage Sansui SP2500 Speakers (Crossover Repair)

Posted on April 5, 2011 by jwk

I’m always keeping my eyes out for interesting vintage hi-fi speakers from the ’60s-’70s, and found a nice set of Sansui SP2500s on Craigslist. Produced between 1960 and 1974, these beautiful walnut speakers are solid and very heavy – definitely … Continue reading →

Posted in Electronics, Projects, Vintage | Tagged , , , , , , , | 37 Comments