Ever wonder what the inside of a 20 year old relay looks like? This is what happens over the years as the contacts close and open hundreds of thousands of times.

The point circled in blue was completely unused with no wires even being connected to it. The blackening on it is some of the burned off metal from the other contacts that was deposited on it. The 2 circled in yellow are all burned away and havent been making any contact at all since turning the machine on this fall. The point circled in red was the only one making any contact at all this fall and only a small fraction of it was actually touching and completing the circuit. The actual point is all burned away and just a small portion of the underlying copper (Brass?) bar was touching to complete the circuit. Until it too failed last night.
Java "Sensing an SSR in his future" phile

The point circled in blue was completely unused with no wires even being connected to it. The blackening on it is some of the burned off metal from the other contacts that was deposited on it. The 2 circled in yellow are all burned away and havent been making any contact at all since turning the machine on this fall. The point circled in red was the only one making any contact at all this fall and only a small fraction of it was actually touching and completing the circuit. The actual point is all burned away and just a small portion of the underlying copper (Brass?) bar was touching to complete the circuit. Until it too failed last night.
Java "Sensing an SSR in his future" phile


). $200 seems crazy high (although it is from a coffee place :

Comment