Your oldest gear?

Technics SH 8020 Stereo Frequency Analyzer 1980 

@larryi More info and photos in my Virtual System. 

One of the Eico sets is modified with fixed bias, chokes and triode input. The other just recapped. The Lambda is a tube regulated bench supply that I use with the preamp. 401s are all AudioGrail refurbished. 

My office system:

Sansui 8080

Concept 2QD

ADS L810

1965 McIntsosh Mc240

1965 McIntosh Mx110z

1965 McIntosh MR67

Purchased 2/3 in 1978 (still have original receipts from both 1965 and 1978) - Mx110z replaced the 1965 C24 last year.  Mc240/Mx110z have had PSUs rebuilt and cap work.  They sound great to my ears.

My oldest gear are my ears.

Next is a Cary Audio pre amp, approximately 15 years old.  It’s been retubed