HP41.org

Hi All
See attached tutorial with pictures about reinforce the tread holders
One outside with hand made washers and the other internally with metal rings to reinforce the treads.
Best Regards,
Guilherme Porto

Is that a standard 3AG fuse?

Hello Garth,
The fuse is the small one.
But doesn’t matter because it comes with a bunch of sizes.
What really matters is the inner diameter that should fit exactly with the HP posts.
It was really a good coincidence that I found an old TV antenna that also fits perfectly.
So the trick here is to find the perfect match or to ask a turning shop to machine that for you.