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Looks like the "Powered Sport Flying" magazine is kaput.

https://www.rotaryforum.com/threads/powered-sport-flying-magazine.1148095/

I think I purchased a couple of these off Amazon a while back. (It's been a while and I've slept since then...) The box says: Kimpex, 280521, old number 01-143-45, cdi box bomb kimpex boite elec...

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