Your oldest gear?

Pretty easy for me since my vintage gear is my main gear:

-  Aiwa LP-3000 linear tracking turntable

- Conrad Johnson Premier Three preamp

- Heathkit AA-1640 rebuilt by Bill Thalman, Conrad Johnson original Technical Director for 20 years at Conrad Johnson

- Dahlquist DQ28 speakers

@nhouseconsulting  bravo the Premier was and probably still is an incredible preamp… I think mine was in first production run before Harry made CJ the word…. Carry on Sir

Hafler DH-200

and even before 

Marantz 1060

The woofers in my custom horn speakers are my oldest component.  They were made in 1946.  My oldest factory assembled piece would be my Wharfedale W60 speakers which were made in 1960.  

Not as old as some things listed in this thread, but I've got a mint condition McIntosh MAC1700 that I still really enjoy. Almost 60 years old and still going strong, with the occasional recap as any component of that age will require.