4211E Top Pip STC Standard Telephones & Cables 211 VT4C audio and transmitting triodes

Description

The 4211E valve is similar to the 4211D valve but has small chokes connected in series with the grid and anode leads to prevent spurious oscillation at ultra high frequencies, it is a 10 Volts filament valve and it is considered the best version of the more common 211 VT4C.

The 4211E is in fact a 211 with top pip also made by Western Electric USA type 211E.