What's the oldest piece of gear in your system?


This site is here for the buying and selling of Audio equipment. This causes me to wonder if most of us have relatively new equipment. If most of it is new, what is the oldest piece of equipment still in use, and why are you still using it?

My oldest piece is a Sota Star Sapphire, but it has been upgraded. It was originally purchased as a Sapphire in the 80's, but was upgraded to a Star Sapphire about two or three years ago.

What's your story?
128x128nrchy
Like Cello above the answer is "me". Made in 1942 and born in May 1943 and still enjoying Audio. Other that that it is a quad of RCA Cunningham 45s and RCA Biplate 2A3s both made in 1943 also (a coincidence?)
26 tubes, which until I plugged them in, probably haven't seen electricity since the 40's. Hogan 300b amp, which probably has OPT's from the 50's or 40's, and Akai el84 mono blocks taken from old tape recorder, from the 60's or 70's.
I have a piece of marble that my sub amp sits on. It's probably 700 million yrs old or more.