Life Tone NTR-103a 10 Transistor AM Radio Recapped Repaired Works Vintage 1962 Ugly Beat-Up
This was a fascinating and unexpected repair. The radio is electronically restored. It works like it did when new, and it looks like it’s been thrown out the window of a moving car.
For a detailed description of the radio and the work done, please continue reading:
Research: Interesting. I’ve never heard of this model of radio. I was surprised to find that this radio is THE EXACT one listed in Radiomuseum’s database. Here’s their entry:
So… this radio has some history. Made in Japan by the Tokai Wireless Co, they say the radio was made in “1962?”. I would venture that’s likely correct. Definitely pre-’65.
Initial inspection: It came to me 5-3-2025 not working. It looks beat-up. Initially I was going to strip it for its parts, so I connected it to my power supply to see what was worth saving. I found: I could get a pop from its speaker when powering on/off. Its tuning capacitor was badly wallowed out, but if I held it just right, I could just barely tune that powerful Clear Channel station that’s seven miles from me. The volume control also needed to be wiggled around just right. It peaked my interest to see if it I could save it.
I’ve repaired 100s of vintage radios, and I enjoy a challenge. Something in this condition stretches my skills.
Repair: It was missing its mounting screws, so the circuit board just fell out. I found it had been dropped (duh!) and the circuit board area around the volume control had a crack. (I’ve repaired worse). I bonded the circuit board crack closed, and reinforced it with JB-Weld. It will never come apart there again. I then soldered in jumper traces where needed. This work got the volume control working reliably.
I replaced the tuner with a good used one. The radio was working at that point, but at a very low volume. That’s the expected symptom of open capacitors. I replace all five. Two were found to be open. This work restored the radio to working order, and it works quite well. Surprisingly well!
Next I turned my attention to its cabinet. I cleaned it. I clamped, closed, and sealed the cracks in its corners.With the cabinet patched back together the best I can, I reinstalled its circuit board, and scrounged up three replacement mounting screws.
I made a replacement battery landing card, re-bonded its battery anti-rattle foam, and checked the radio’s alignment. Because I replaced its tuning capacitor, I needed to re-trim its antenna. Amazingly, with all this poor old radio has been through, I found its alignment to be in perfect adjustment.
Performance: Its works like it did when it was new. Volume control goes smoothly from quiet to overload loud. It tunes all the stations in my area I use to confirm a radio is working properly; both the strong stations and my weak ones. It is actually quite sensitive and a good performer.
Condition: Chips… Cracks… Missing trim paint... Dented speaker grill... You name it… It’s beat. The back stays on. Nothing rattles. Its controls are smooth and precise. It gets loud. Easy to tune. It works good.
Epilogue and Opinion: That was fun! Not that I would want all the radios I repair to be hammered, but needing a little bit of everything… I enjoyed the repair.
I know it’s not a common model. It’s probably rare. Ten Transistors. Made in Japan. I’m pleased it could be saved.
I usually service the vintage radios I sell on eBay. Serviced = I clean the volume control, check the radio’s alignment, and check its current draw. I also fix whatever else needs attention.
I ship USPS Flat Rate. A tracking number will be provided the following business day after purchase. I will combine shipping when applicable, so please see my other cool old radios for sale.