Headphone plug replacement question

[0TreeLemur]

I have an old David Clamp headset with brass plugs that keep corroding and become intermittent.  I ordered and received new replacement chrome plugs from Spruce.  But, the new ones are stereo.   With regard to the photo, when using a stereo plug to replace a monaural plug, do I connect to contact 1, 2 or both?   Thanks.  Free toaster to whomever answers correctly first.

[Jerry 5TJ]

Both. 
 

Have you tried some ScotchBrite on the brass plugs?  They should buff out bright as new.  

[EricJ]

I could tell you but I do not want a toaster.

[chriscalandro]

Both. Potentially depending on how your headset is wired you could convert it to stereo. 

[0TreeLemur]

1 hour ago, Jerry 5TJ said:

Both. 
 

Have you tried some ScotchBrite on the brass plugs?  They should buff out bright as new.  

In my humid climate, that is a temporary solution.  Chrome plugs are the way to go.

[0TreeLemur]

1 hour ago, chriscalandro said:

Both. Potentially depending on how your headset is wired you could convert it to stereo. 

Thanks.  Old 10.20 headset is definitely mono.

[chriscalandro]

Yeah but if it has 2 headphone cups are the wires separated or is one jumped off the other?

depending on how it’s wired it could be a pretty easy upgrade. 

[0TreeLemur]

18 minutes ago, chriscalandro said:

Yeah but if it has 2 headphone cups are the wires separated or is one jumped off the other?

depending on how it’s wired it could be a pretty easy upgrade. 

My intercom is mono.  I'd love to have stereo and a new PS engineering stereo audio panel with virtual surround, but that ain't gonna happen for quite a while.