Vintage Onkyo A-7090 Integrated Amplifier Photo #2320576 - US Audio Mart
Onkyo History | ONKYO 70th ANNIVERSARY Website
Ressurected my Onkyo A-7 amplifier, assembled in 1979, by using WD-40 and Q-Tips. Couldn't be more happy that it's fully functional again. : r/audiophile
Onkyo Grand Integra M-508 power amplifier | Stereophile.com