Size of Knurled Ground Nut on Phase Linear 4000 preamp

Sunnbobb

Journeyman
Joined
May 25, 2023
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205
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Mount Vernon, WA
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Bikes, baseball and big amps.
#1
I can't seen to find my thread gauge, and thought perhaps someone would have this on the tip of their mind.. Does anyone know the size of the nut which goes on the grounding post of the 4000? Thank you for your time! 20241116_073556.jpg
 
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