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Old 27th Feb 2020, 6:07 pm   #203
ricard
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Join Date: Mar 2006
Location: Lund, Sweden
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Default Re: Grundig TK 819 Any Useful Info

Quote:
Originally Posted by DMcMahon View Post
The TK 819 jack plug measures 0.235" / 6mm

I remember now reading several weeks ago (cannot currently find it) in an older posting (I think for one of the Grundig TK 8XX threads) of someone encountering the same issue and fixing it by drilling though the jack sockets with a 1/4" drill ! saying something to the effect that with some 1/4" jack plug manufacturers, the sleeve diameter was smaller than the standard 1/4".

Seems a bit drastic to have to drill though the jack sockets so I will hang fire on that, maybe I can find a source for the < 1/4" jack plugs.
It's good to know that it is possible to ream them, I would be worried about them getting destroyed due to the metal becoming too thin. Still I would think it would destroy the plating (I'm assuming they are nickel plated brass or somesuch) which is a pity.

I once makeshifted a plug by wrapping an long M3 or M4 screw with scotch tape so that the resulting contraption was 6mm in diameter. That at least made contact with the inner part of the socket.

An idea would be to take something like a round standoff with a 6mm outer diameter (such as this one: https://uk.rs-online.com/web/p/round-spacers/1022326/), put some sort of insulation in the bore, such as heat shrink tubing, and screw an M3 screw into the tube. It won't be pretty but could be reasonably functional and wouldn't necessitate carving up the '819.

Or indeed something like this https://uk.rs-online.com/web/p/round-spacers/1418506/ where the flange would stop it getting pushed in to far.
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