10KR8 Vacuum Tube – Triode-Pentode for TV Circuit Service

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The 10KR8 is a triode-pentode combination tube from the "10" series of television service tubes, sharing its heater-string voltage with the 10JY8 and 10KU8 family. Tube type: Triod e-pentode Base: B9A / Noval 9-pin Heater: ~10V AC (series-string TV tube family) Typical use: Sync, video, or audio circuit duty in television receivers Part of the broader family of dual-function TV service tubes carrying the 10-volt heater designation. Show more