HP67 repair squelch

[teenix]

(01-16-2020 12:19 PM)murphy9 Wrote:  Many thanks - this looks like something I can get easily here

https://www.jaycar.com.au/50-ohm-rg58-c-...e/p/WB2012

Will have a 'play'

Backup will be superglue :-(

Weekend and Magnifier required I think.

Speaking of play, I forgot to mention there that it is easy to make the coupler a bit wider than normal thinking perhaps that it will have a better grip on the motor shaft.

However it should be kept to the same width as the normal coupler because the motor shaft needs a small amount of side play so that the worm gear meshes properly with the drive wheel. After re-assembly a longer coupler may put pressure on the motor shaft causing drag and high motor current.

cheers

Tony