Then perhaps someone needs to educate Elecraft not to specify use of a
torque wrench, in their assembly instructions. ;-)
73,
Alan. G4GNX
------ Original Message ------
From: "Bert" <[email protected]>
To: [email protected]
Sent: 20/10/2020 05:15:21
Subject: Re: [Elecraft] KPA500 Transformer
Toroidal transformers cause very little acoustic hum, unless the core
is not tightly wound or the copper wire windings are loose!
If you have to tighten the mounting bolt with a torque wrench
to get the transformer quiet, something is wrong!
Bert VE3NR
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