You might try checking with John KF6I at Island Amplifiers. He services
Alpha legacy products:
https://islandamplifier.com/
I agree that the material is very likely to be iron powder. If so, there
is a good chance Micrometals is the manufacturer:
https://www.micrometals.com/
73, Mike W4EF......................
On 12/2/2024 7:18 PM, Greg Wasik wrote:
I have a friend in Thailand who recently zorched out L5 in his 77DX.
Believe it or not, a small lizard got into the tank circuit and when he was
tuning on 80 meters, L5 got extremely hot - to the point of cracking both
of the torroidal cores! Does anyone know what specific cores were used or
if not, what the approximate value of inductance that L5 should be? I
assume these are iron powder cores. I'm trying to help him remotely or
perhaps send him a replacement
Greg
K1YW
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