Tag Archives: grunow radio restoration

1948 Motorola 99-FM21 Console Radio Back to Life

Posted on December 23, 2013 by jwk

I recently had the chance to work on this beautiful Motorola 99-FM21 from 1948, currently owned by the granddaughter of its original owner. It’s been in the family since its purchase new in 1948 and was lovingly cared for the … Continue reading →

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Depression-Era Radio: 1934 Grunow 460 Tombstone

Posted on January 24, 2013 by jwk

I’ve had this Grunow 460 sitting in my queue pending for a little while and it’s finally on it’s way home looking great! There was a fun extra bit of detective work to identify and solve the issues that came … Continue reading →

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1936 Grunow 566 Repair Finished! [Part 2]

Posted on March 10, 2012 by jwk

I started this radio a few days ago in Part 1. I left off with the radio up on the bench ready for service. It had a lot of issues with the power supply – and as I discovered while … Continue reading →

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Grunow 589 Radio Repair Redux

Posted on December 29, 2011 by jwk

A client came to me with another Grunow 589 needing repair. I’ve seen this model radio before in my shop and it was pretty exciting to work on another identical one. This particular one came in excellent shape – it … Continue reading →

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Repairing an Antique Radio from Start to Finish [7 – Conclusion] – Grunow 589

Posted on June 26, 2011 by jwk

And we’re done! The saga of restoring the Grunow 589 is coming to a close, as I’ve sorted the last issue, performed the final set of adjustments and verified correct operation of all its features. If you’re just joining in, … Continue reading →

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Repairing an Antique Radio from Start to Finish [6.5] – Grunow 589

Posted on June 21, 2011 by jwk

I’m continuing to work on this Grunow 589 radio, and it’s being difficult. If you’re just joining in, take a look at the previous entries to see what you’ve missed and catch up – not to mention, there are some … Continue reading →

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Repairing an Antique Radio from Start to Finish (6) – Grunow 589

Posted on June 5, 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 (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