Perfect. It’s the updated version with a glob of silicone under it.
Good. I'm glad you have v2 mosfet's.
Honestly I don't know if 3rd party sellers would ship their initial units back for the updated ones.
I have no clue as to how many of the v1 mosfet devices and spare chips are still 'out there'. My feeling is better safe than sorry.
Think it is a nice mod and I am considering grabbing one + spare mosfet's.
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For anyone looking at the Cthulu tube mod here is some info which may be of help.
Also
@Heartsdelight as you did express an interest in the mod yesterday.
There are two versions of the mosfet. You want to make certain you have version 2 for safety (see the end of this post for what safety features the mod has).
Here are a couple things to be aware of with the version 1 mosfet.
1) The tab on the original mosfet would get bent downward from a longer positive pinned atty.
Note: See the tab above. That serves as the connection to your atty.
2) Version 1 of the mosfet was not coated. Meaning if you got liquid on it the device could auto-fire (per Todds videos).
Cthulu was made aware of these problems a while back and updated the mosfet with a glob of silicone under the tab on the mosfet. Problem 1 solved.
See the silicone glob under the tab above. That is a version 2 mosfet.
Cthulu also coated the mosfet meaning if you get liquid on it it won't auto-fire unlike v1.
Problem 2 solved. (per Todds video)
Also be aware if you have an atty with a longer 510 positive pin and you screw it down you can break the mosfet. (per Todds video)
Here are Todds videos if interested.
Todds original video for an explanation of the problems.
His 2nd video/review covers how Cthulu resolved the problems.
The mosfet protections include reverse battery protection, if it detects a short it won't fire and it has a 3.2 volt cutoff. I believe those are the same protections found in the Luna (and other similar devices).
I am considering getting one directly from Cthulu as you are assured of getting the v2 mosfet.
Mod:
Cthulhu Tube MOD, Cthulhu Tube
Mosfet:
Cthulhu Tube chip
Instructions how to change the mosfet:
How to replace Cthulhu Tube chip? – CTHULHU MOD -Innovations for Vaping
Replacement button:
Cthulhu Tube Button
That is the end of my public service announcement.
Cheers!!!
