I like Wolf's post so much I'll follow his lead. A blackface 1967 Fender Showman amp (four 6L6 power tubes) with a 15" JBL D140 driver for my '68 Fender Precision bass, and a blackface '66 Deluxe Reverb for guitar.
For hi-fi, a Fisher X-100A, bought used in 1968 to drive a pair of AR 4X loudspeakers (wish I'd known about the Dynaco A-25!). Next was the combination of D-51 and D-75 amps from Audio Research, new in '72, used to bi-amp Magneplanar Tympani T-I's.