The Silver Ink Circuit Pen?

[ApisMellifera]

So this is where, can I say, the hipsters put their hard earned fiats into...  what do you guys/gals think?

 

 

[Scuzzle]

I had an old MK3 Escort with the bad back light problem where the circuit board would rot away and this would have been ideal to fix it.

[HawkHybrid]

people used to release the multiplier of amd athlon xp cpus by

using a silver solution to link the connectors. it also worked with

a graphite pencil but sometimes this was temporary.

 

HH

[NumisNewbie]

I wonder how much silver each pen uses... if this kind of tech gets taken up widely and used across schools and universities we could be looking at huge demand and a possible knock on effect on spot. Kits on Amazon with pen and special paper are £13 although there's a different type that can use any surface for £46. Definitely a fun way to teach kids applied science! Thanks for sharing the vid

[Murph]

I think there are ones with different metals used like nickel, maybe copper - paint at least- and of course carbon.  I had forgotten about using a pencil on the old athlons.  I never dared to try paint on the athlon as pencil was reversible and had less chance of spreading to somewhere you didn't want it.

Given how high the resistance is compared to the pure metal I doubt there is very much used.