Originally posted by reh321 So, the "green" plastic is PET and the "white" plastic is PTFE.
Two questions:
The original white "made in Japan" solenoid is PTFE, yes!
Originally posted by reh321 1. Do you know whether the metal in the two different solenoids also differ?
Yes, but I don't know the composites.
The surface of the white made in Japan solenoid is smoother
and .. only a guess.... less prone to corrosion.
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I had once the horseshoe of a green solenoid obviously having some corrosion. The K30 it was taken off was treated well and had no other signs of corrosion.
I know that in regions with high humidity and near the sea this can cause problems, but this K30 did not come from a region prone to high humidity.
Originally posted by reh321 2. Do you know whether they could make a "white" version of PET that would look like PTFE?
YES! I actually had the chance to purchase three new different solenoids from the chinese manufacturer.
1. green and PET... the one we know
2. blue (15 ohms impedance, as used in CD- and DVD-ROM drives)
3. white (32 ohms like the made in Japan one but PET like the others)
I was hoping
LSAGuy who wrote post #66 in this thread would upload photos of his
complete replacement assembly he got from USCamera. The photos there show the green solenoid.
But they way he describes the looks of the white solenoid made me wonder if this version the white solenoid is exactly the same which I have seen.
The difference is quite clear, but I don't have this new China-made white solenoid anymore.
So I have to see if I can get another one and post photos of the original Japan-made one next to this one.
The small permanent magnet of the original white solenoid cannot be moved in this longer slot for the magnet!
But the chinese white solenoid had an ever stronger magnet, the holding force was stronger as well.
I will try to get another one and post photos of both white version Of course there is another possibity: The white made in Japan solenoid was soldered onto the replacement assembly. For whatever reason...