Posted by Bob on June 13, 2013 at 11:21:10 from (64.255.159.192):
A while back we participated in discussion about H-4 coils and the core that passes through them.
I wrote "It's made of laminated steel plates riveted together and ground to a round shape."
"If you get rough with it trying to press it out of the old coil, you will deform the riveted together laminated pieces and render the core useless. You do NOT want to know how I know this!"
You chimed in and wrote "H4 coil core is not laminated."
Well, last night I found the core that I had messed up a few years ago, saved in a box of H-4 mags, parts and pieces. Here's it is... still say it's NOT laminated? (I squashed it a little more in the vice to make the laminations more evident.)
After it's been squashed, the rivets are sure evident!
I can't say ALL of the H-4 coil cores were made like this, but is seems reasonable to guess that they were.
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