Nathan Airchime K2HA
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- Опубліковано 5 січ 2025
- This is my parts build narrow font Nathan Airchime K2HA. As mentioned in the video, I believe this is the correct designation for this manifold type. I saw this manifold on eBay and since no one really has done a video on it before, I figured I would be the first. This doesn't sound quite like Metrolink however. I use a manual Graham White valve and almost every piece of Metrolink equipment that I know of uses solenoids. Additionally, when I got the 4A bell from auction and opened it up, I found the first diaphragm was damaged and creased with the outline of the nozzle. I think this is the cause of the slight squeal from it in particular when I let off the valve. I might make another video when I get a new diaphragm for it. Anyways, hope you liked it and let me know what you think!
If you have a spare KS-1 bell you should swap the 4A with it to make a K12, They're quite common in Australia and they have a really nice tone to them, they can be quite punchy. If you do so, make sure not to use a restrictor at all.
Hey, thanks for the suggestion! I do have a K1 bell as I’m in the process of building a K5LA. This 2 chime manifold has no restrictor, so I might give this combo a try. Hopefully I can get that K5LA built and have that on the channel too.
@@johnwestfieldytNote: the K12 sounds best with sudden blasts instead of gentle quilling, Since all the trains that have these in Australia do so because of the electric solenoid.
I believe it's actually a K24, as the Metrolink F125s videos I've seen show a tritone. A K24A is a perfect fourth, not as menacing sounding.
Hey, thanks for watching! I’ve read on 5 Chime consultants that Metrolink uses a 2 and 4 so I might be incorrect. At some point I will get a straight 4 and try that out. As for the F125’s, they have two horns. One is located underneath (K2H) and one located on the roof (K3LA/K3L). Hope you enjoyed just the same!
Depends on the Rotem/F125. I've seen videos of K2Hs on Metrolink with bells with 2 and 4 as well as bells 2 and 4A.
@@sepa2401 I know what you're saying. I've seen a clip of one with a K24A. However, that was likely a mistake as the majority use a K24.
@@TheRailfan360 Yeah that is likely. That mainly happens when the horn is assembled with the wrong bell accidentally by Micro Precision or when they run out of stocked 4 bells. From what I know, Simalex die casts the horns, and Micro Precision machines and tunes the horns in-house. After all, every K horn starts out as a pile of parts.
@@johnwestfieldyt the rule usually goes for nathan that if it has under 3 bells, its designated by the bells used. a good example of this is cpkc's gp20ecos, they have dual chime horns designated as k13b's, named after the 1 and 3b used on it. hope this helps
4A sounds a little fouled.
Yeah, I’ve noticed that too. One of the diaphragms is damaged and creased from over tightening or having too much pressure being applied, leaving a mark from the seat of the bell. I bought a replacement diaphragm so hopefully that fixes it.