This 1950s Sylvania 5V4G rectifier tube has black plates and a bottom getter. The green print on the base has the Sylvania lightning logo.
Tube tests as new. It ships in a new white box.
This 1950s GE 5V4G rectifier tube has an ST bottle, black plates, and a bottom D getter. The silver print on the base has the GE logo. The bottle may be tilted (common for this tube type). Tube tests as new.
This 1950s 5V4G rectifier tube was made by RCA and labeled for other companies (Raytheon, Philco, etc.). It has an ST bottle, black plates, and a bottom D getter. The bottle may be tilted (common for this tube type). Tube tests as new.