"Restoring" my HMV 130
Posted: Sun Feb 01, 2009 12:50 pm
You may have read my story about the HMV 130 I bought on Ebay. After it's arrival I had mixed feelings about it, but I'm getting to be more and more enthusiastic about it. But first I need to have some more info on this machine, so I can proceed with the right materials.
- The motor. Someone degreased and regreased it for me, and it's running rather smooth now, but I do hear the occasional little bump now and then. It's not as bad as it used to be, when I first got it the bumps were more severe and occurred more often. Are those little bumps now and then harmless or not, and do they mean I need new springs?
- The wood. I'm not sure what kind of wood it is, but it looks layered, and quite frankly, a little cheap, like cigar box wood. It`s a little dirty, so I want to clean it. Should a damp towel do the trick, or do I need stuff like Goo Gone? There are quite some scuffs and scratches, and for the moment I intend to leave it that way, but if I change my mind, would it be OK to sandpaper it, oil it, paint it, or whatever I could to to restore it to it's original state?
- The veneer on top of the lid is lifting. I have read I can just glue it back with super glue or white wood glue. Is that correct?
- The grille. I may be able to get some original cloth, so I already removed the grille. I unscrewed the two screws at the top, at the bottom it just slides into a slit, if you know what I mean. I tried to put it back, but it didn't fit anymore, for some strange reason. The slit is clean, no debris or old steel needles in it. Because it fit in there when I bought it I guess I'm doing something wrong, or did the wood expand in the last couple of days?
- The metal. I understand that the tonearm, the needle cups, the needle container, the speed dial, the eskutcheon (I now have an original one) are made of brass. They would benefit from a little polish, I think, they look a little dull, and some of them even have a few rusty spots. How should I proceed? Should I use Brasso (metal polish), Coca Cola (anti-rust), or just leave it. I once polished a candle with Brasso, and it ended up bright and shiny, but after a couple of months the dullness returned. And since when you are polishing you are in fact removing a little layer, if you polish long enough it will be wearing thin.
-Finally, the soundbox. Since the original soundbox was damaged beyond repair I bought another one. It sounds good, the rubber ring at the back feels flexible, and when you press the needle bar you can see the diaphragm moving back and forth. So I think it is in good shape, except for a little crack in the edge. It sounds good though, I think, maybe a little lacking in bass. I must admit I have no idea of how good it could sound. The only reference I have is my Columbia 109A portable, and my modern equipment, adapted to play 78's. The 130 sounds a lot better than the 109A of course, but compared to my modern system it lacks in bass, and maybe in highs (which can be solved by playng with the lid open, instead of closed, so the reproducer acts as a tweeter). Or is it unfair to compair a 130 to my modern system? Should I get my soundbox rebuilded, or shouldn't I expect a significant increase in sound quality from it?
Those were my questions for now. I hope some of you are able and willing to answer them. Thanks in advance for your help.
Kind regards,
Bart
- The motor. Someone degreased and regreased it for me, and it's running rather smooth now, but I do hear the occasional little bump now and then. It's not as bad as it used to be, when I first got it the bumps were more severe and occurred more often. Are those little bumps now and then harmless or not, and do they mean I need new springs?
- The wood. I'm not sure what kind of wood it is, but it looks layered, and quite frankly, a little cheap, like cigar box wood. It`s a little dirty, so I want to clean it. Should a damp towel do the trick, or do I need stuff like Goo Gone? There are quite some scuffs and scratches, and for the moment I intend to leave it that way, but if I change my mind, would it be OK to sandpaper it, oil it, paint it, or whatever I could to to restore it to it's original state?
- The veneer on top of the lid is lifting. I have read I can just glue it back with super glue or white wood glue. Is that correct?
- The grille. I may be able to get some original cloth, so I already removed the grille. I unscrewed the two screws at the top, at the bottom it just slides into a slit, if you know what I mean. I tried to put it back, but it didn't fit anymore, for some strange reason. The slit is clean, no debris or old steel needles in it. Because it fit in there when I bought it I guess I'm doing something wrong, or did the wood expand in the last couple of days?
- The metal. I understand that the tonearm, the needle cups, the needle container, the speed dial, the eskutcheon (I now have an original one) are made of brass. They would benefit from a little polish, I think, they look a little dull, and some of them even have a few rusty spots. How should I proceed? Should I use Brasso (metal polish), Coca Cola (anti-rust), or just leave it. I once polished a candle with Brasso, and it ended up bright and shiny, but after a couple of months the dullness returned. And since when you are polishing you are in fact removing a little layer, if you polish long enough it will be wearing thin.
-Finally, the soundbox. Since the original soundbox was damaged beyond repair I bought another one. It sounds good, the rubber ring at the back feels flexible, and when you press the needle bar you can see the diaphragm moving back and forth. So I think it is in good shape, except for a little crack in the edge. It sounds good though, I think, maybe a little lacking in bass. I must admit I have no idea of how good it could sound. The only reference I have is my Columbia 109A portable, and my modern equipment, adapted to play 78's. The 130 sounds a lot better than the 109A of course, but compared to my modern system it lacks in bass, and maybe in highs (which can be solved by playng with the lid open, instead of closed, so the reproducer acts as a tweeter). Or is it unfair to compair a 130 to my modern system? Should I get my soundbox rebuilded, or shouldn't I expect a significant increase in sound quality from it?
Those were my questions for now. I hope some of you are able and willing to answer them. Thanks in advance for your help.
Kind regards,
Bart