I have a brass V2 that I've completely disassembled on more than one occasion, no springs to be found... and only .26 voltage drop. Interesting.
I have a v2 with the smoke logo. Here is everything taken apart except the top cap. You can see the screwdriver slot in the top cap for adjusting the center pin.
Here are the parts of it. From top left.
1. Tube
2. Negative battery contact
3. Spring
4. Tube side switch contact
5. Magnet
6. Top cap
7. bottom button
8. Bottom cao
9. Bottom cap switch contact
10. Magnet
If everyone is wondering, yes there is a spring in the bottom that is between the negative battery terminal and tube side switch contact. Also I do .4 ohms all day without problems.
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