USED Philco 5Z3 Rectifier Vacuum Tube

"CO" of Philco is all the lettering

that remains.

5Z3 stop sign etching is visible

Emissions readings using Eico 625: 

840/820 (minimum good is 575)

Glass is tight in base

Pins are clean

Shipped in small box 

The item in the pictures is the actual

item that the buyer will receive

Combined shipping for multiple items.

Unused shipping charges refunded.

I will be happy to answer any questions