Tube Type: CV569 / ECC35 – Dual Triode (British military designation CV569). CV569 = ECC35. Opened only for photography. Etched codes “RU3”. Fat brown base. One of the rarest dual triode finds in this condition.
Tube Type: CV569 / ECC35 – Dual Triode (British military designation CV569). CV569 = ECC35. Opened only for photography. Etched codes “RU3”. Fat brown base. One of the rarest dual triode finds in this condition.