This is a good honest group of six late 1950’s/early 1960’s RCA 12AU7A’s with 17mm gray plates and angled squared getters, (see pics). The values are marked on each tube. Hopefully these tubes will help you in your restorations and upgrades!
This is a good honest group of six late 1950’s/early 1960’s RCA 12AU7A’s with 17mm gray plates and angled squared getters, (see pics). The values are marked on each tube. Hopefully these tubes will help you in your restorations and upgrades!