Torque wrenches are used for two reasons: 1) to make sure things are tight enough
2) to make sure things are not tightened too much. Stating the proper torque is good engineering practice. For common screws and bolts one can find the suggested torque in reference books and online. For special circumstances the manufacturer should publish the proper values. David K0LUM > On Oct 20, 2020, at 5:31 AM, Alan - G4GNX <[email protected]> wrote: > > 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 >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
