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Halfround String Mystery

So i got a fretless bass as a teenager and later on I change the strings to half-wound/groundwounds. No idea what brand or gauge (let's call it my mystery set). Fast forward fifteen years, I decide to start experimenting with strings and I went heavy into flats (every gauge of Labellas, plus GHS, Fender, and Chromes). I ended up getting a set of D'Addario Half Rounds too at some point.

I don't really play the fretless when playing in a group, but it was my first bass and I still like tooling around with it at home. At some point the G string of my Mystery set broke at the long end (which is strange because out of the dozens of strings I own none of the others have ever broken) but hey they were old strings. But the other strings are still good, and have 15+ years of history with me playing on them. So i put them back on, and just used the D'Addario half round G I had, but I notice that it is definitely NOT the same set.

First, the D'Addario strings look almost a little more bronze compared to the Mystery set, they are both silver but the D'Addarios look a little less like true silver. Second, at least the G string on the two sets are definitely not the same gauge, the D'Addario's are a medium gauge and so the G at 50 is noticeably bigger than the G on the Mystery set. I can't tell if the Mystery is a 45 or a 40, but the E string appears to be about the same size on both sets.

Any good bass detectives here know how to sleuth out what kind of strings are on my mystery set? I know there are D'Addarios and GHS Brite flats, any other suspects? Any other likely gauges?

Thanks for your help!
 
Any good bass detectives here know how to sleuth out what kind of strings are on my mystery set? I know there are D'Addarios and GHS Brite flats, any other suspects? Any other likely gauges?

Pics of the mystery set would help. One at the tuner end and one at the bridge end.

Does the mystery set have any silk on them? If the silk is blue (only at the tuner end) and the measurement from the ball end to the start of the silk is around 38", they could possibly be GHS Brite Flats. What about the color of the ball ends?
 
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I don't really play the fretless when playing in a group, but it was my first bass and I still like tooling around with it at home. At some point the G string of my Mystery set broke at the long end (which is strange because out of the dozens of strings I own none of the others have ever broken) but hey they were old strings. But the other strings are still good, and have 15+ years of history with me playing on them. So i put them back on, and just used the D'Addario half round G I had, but I notice that it is definitely NOT the same set.

So, are you saying the mystery set is over 15 yrs old, and the D'A Half-round G you just put on to replace the broken one is brand new?
 
Any good bass detectives here know how to sleuth out what kind of strings are on my mystery set? I know there are D'Addarios and GHS Brite flats, any other suspects? Any other likely gauges?

Thanks for your help!
Never tried them myself and I've no clue as to visual features, but D'Addario used to make stainless steel Half Rounds at some point (guitar Half Rounds are SS to this day), the "Series II", in at least two sets, the SHR71 (45-65-80-100) and SHR72 (50-70-85-105), of which I've seen pics of; I've also found mention of a SHR70 (it should be the lightest, 40-60-75-95) set.

TBer @Astroman had one for sale a couple years ago:
SOLD - Slightly used but cleaned string sets: Rotosound, D'addario, DR, more...

acfa9fae-b8ca-42fc-a019-0a6a6b630fdd-jpeg.2928804
 
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I was going to ask exactly when D'A changed their half-rounds from stainless steel to pure nickel. Is it possible the OP's "mystery half-rounds", being over 15 yrs old, are in fact the old stainless steel version?
That's what we both were getting at. Those look like they are from the Nineties, I think. According to TB lore, the original Halfies from the '70s (codename HR72, possibly more than one set available but I wouldn't know) were pure nickel, then the SS version (I'm guessing with the above-pictured SHR72 etc. designations) was added, then the nickel discontinued, then the name of the surviving steels changed to EHR72 etc., with a new package
DADDARIO_EHR_Bass.JPG

and a new formula too? Huh: they had [This invalid link has been removed], for some reason.
Then, finally, in mid-2005
D'addario discontinuing Halfrounds
the pure nickels (this time called ENR72 etc.) were brought back, replacing the steels. Fin (?)
 
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Then, finally, in mid-2005
D'addario discontinuing Halfrounds
the pure nickels (this time called ENR72 etc.) were brought back, replacing the steels. Fin (?)

So, that would make it exactly 15 yrs ago. Interesting...

What about the D'A signature color-coded ball ends? When did they start doing that? The OP says the ball ends on his "mystery half-rounds" are all brass.
 
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So, that would make it exactly 15 yrs ago. Interesting...

What about the D'A signature color-coded ball ends? When did they start doing that? The OP says the ball ends on his "mystery half-rounds" are all brass.
Also a good question. From early TB posts I gathered that D'Addario experimented with multicoloured ball-ends in the late '90s with the Slowounds (which originally had "solid balls"), but then changed that in favour of multicoloured silks for those.
Roundwounds and flatwounds
Then, in 2004 (but with some earlier potential examples) clear mentions start regarding D'Addario being back at color-coding, this time their entire line, including the then-current Half Rounds:
Different Colored Ball Ends
which would mean that the latest stainless steel version (EHR), or at least its last years, would not match the OP's mystery strings, but the previous one might, depending how old-stock in the store they were.
 
to balance the set you're looking at new old stock.. or artifically aging the new string with eucin moistizer.. or applecider vinegar.. to remove the coating.. or using a vibator to imitate wear from playing.. I'd go with the eucin cream.. if you can't fine another replacement or someone has a better..
 
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Then, in 2004 (but with some earlier potential examples) clear mentions start regarding D'Addario being back at color-coding, this time their entire line, including the then-current Half Rounds:
Different Colored Ball Ends
which would mean that the latest stainless steel version (EHR), or at least its last years, would not match the OP's mystery strings, but the previous one might, depending how old-stock in the store they were.

Based on this, it's quite possible the "mystery half-rounds" in question are in fact D'A stainless steel half-rounds from sometime before 2004 then. I'd be good with that. ;)
 
They definitely aren't pressurewounds, I have those too. They are grounds for sure, they look and feel like the D'Aaddarios except they are a slightly lesser gauge and I think yes, they are stainless steel that makes sense. Is there anyway to still get them in stainless steel?
 
Given the age and description of the strings, they might be the discontinued La Bella Quarter Rounds, which can easily be mistaken for Half Rounds. These pics are of the only set I’ve ever been able to buy. I wish they were still available because they are absolutely fantastic strings!

FD26D6FC-FFD5-46FB-85FB-4D2A5C950B2B.jpeg
71FEE669-BE0C-4288-89A1-B5DB5F04D2BF.jpeg
3D2E2F14-55E1-4BF0-BAA5-5AC18A29C0AF.jpeg
 
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