1920s Rare Battery Charger [Restoration]
In this tool restoration I focus on a 900-Sterling Rectifier made by The Sterling MFG. Co. of Cleveland, Ohio. The rectifier was most likely used as a battery charger for radios and cars in the 1920s. From my research, I do no think this exact model is a common tool as the pricing suggests it was around 5% the cost of a Model T in 1922. I believe this is a vibratory reed half-wave rectifier, but I am not 100% sure. This technology was used before vacuum tube diodes became popular.
The actually restoration was much more involved than I thought it would be and I was concerned that I would not be able to get this to work once back together. Electrical wiring is not my area of expertise, but a bunch of research helped. I was not able to find an exact patent, but this one was close: https://patents.google.com/patent/US1179515
I chose to replacing the nickel-plating on some of the brass parts, but not all. I had to remake some bakelite pieces, but was able to revive others in plastic restorer cream. I also chose not to do a clear coat on this tool as the original paint seemed to not be that glossy originally. I would have also liked to rewire the main coil, but I just do not feel comfortable yet tackling that. I really do want to have a try at rewinding an electric motor, but I don't want to practice on something so uncommon.
I was VERY surprised that this worked after I wired it back together. It took me about 5 hours of wiring to make sure this was put back together in the exact right way.
Hopefully I can pass this along to someone that can exactly explain how it works!
These are advertisements from 1922: https://imgur.com/a/7L0uZb6
28:39 Nickel-plating solution
Checking continuity: https://youtu.be/eUzKAxZ9pJ8
I would like to thank Evapo-Rust for sponsoring this video.
Wrenches are now for sale at www.handtoolrescue.com
Help secure more tools for future videos (if you want):
https://www.patreon.com/handtoolrescue
Instagram:
https://www.instagram.com/handtoolrescue
Facebook Group - Share your restorations
https://www.facebook.com/groups/handtoolrescue
https://www.facebook.com/handtoolrescue/
Reddit - Share your restorations
https://www.reddit.com/r/HandToolRescue/
Видео 1920s Rare Battery Charger [Restoration] канала Hand Tool Rescue
The actually restoration was much more involved than I thought it would be and I was concerned that I would not be able to get this to work once back together. Electrical wiring is not my area of expertise, but a bunch of research helped. I was not able to find an exact patent, but this one was close: https://patents.google.com/patent/US1179515
I chose to replacing the nickel-plating on some of the brass parts, but not all. I had to remake some bakelite pieces, but was able to revive others in plastic restorer cream. I also chose not to do a clear coat on this tool as the original paint seemed to not be that glossy originally. I would have also liked to rewire the main coil, but I just do not feel comfortable yet tackling that. I really do want to have a try at rewinding an electric motor, but I don't want to practice on something so uncommon.
I was VERY surprised that this worked after I wired it back together. It took me about 5 hours of wiring to make sure this was put back together in the exact right way.
Hopefully I can pass this along to someone that can exactly explain how it works!
These are advertisements from 1922: https://imgur.com/a/7L0uZb6
28:39 Nickel-plating solution
Checking continuity: https://youtu.be/eUzKAxZ9pJ8
I would like to thank Evapo-Rust for sponsoring this video.
Wrenches are now for sale at www.handtoolrescue.com
Help secure more tools for future videos (if you want):
https://www.patreon.com/handtoolrescue
Instagram:
https://www.instagram.com/handtoolrescue
Facebook Group - Share your restorations
https://www.facebook.com/groups/handtoolrescue
https://www.facebook.com/handtoolrescue/
Reddit - Share your restorations
https://www.reddit.com/r/HandToolRescue/
Видео 1920s Rare Battery Charger [Restoration] канала Hand Tool Rescue
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