I’ve got a pile of the original jacks for the 200. Bought them last year when a surplus place was closing up shop. If you want exact original replacements, let me know
I just looked at the jacks I bought. Apparently, I didn’t understand their function. With nothing plugged in to the jack, the input is shorted to ground. Consequently, there shouldn’t be any currents in the ground system which would cause noise.
The 2000 hasn’t been totally kicked to the curb. Let’s just say it’s on the sidelines. If I ever get caught up with everything else, it will get resurrected.