Cleaning bnc connetor

[TorqueRanger]

I got a B+K PRECISION 20 MHZ MODEL 2120 DUAL CHANNEL and I waiting for my order to come in so I can fix it ... But I notice the BNC connectors are tarnished and I was not not sure if that's going to effect my end  results at all Is there  anyway of cleaning the tarnish off with out doing damage to the machine and what kind of metal is it made







Thanks
JAy

[SeanB]

First start with a new toothbrush and scrub with alcohol, that removes most of the gunge. They normally are nickel plated brass, so generally can be cleaned up reasonably. If really green and the alcohol does not remove it then you can use Brasso ( brassware cleaner) with the toothbrush, rinsing it off by scrubbing with a new brush again with the IPA to get the stuff off of all the crevices and the inside. When clean coat with light lubricating oil (3 in 1 works well, I use a synthetic that I use otherwise at work) to protect it. Best is to place a terminator always on it, or a plastic dust cover.

[M0BSW]

First start with a new toothbrush and scrub with alcohol, that removes most of the gunge. They normally are nickel plated brass, so generally can be cleaned up reasonably. If really green and the alcohol does not remove it then you can use Brasso ( brassware cleaner) with the toothbrush, rinsing it off by scrubbing with a new brush again with the IPA to get the stuff off of all the crevices and the inside. When clean coat with light lubricating oil (3 in 1 works well, I use a synthetic that I use otherwise at work) to protect it. Best is to place a terminator always on it, or a plastic dust cover.

Thats interesting ,as I've some on a function generat that could do with a clean, thank you.