4212H STC ITT Western Electric 212 V1505 audio output triode Top Pip CV1252 CV1619 NT92

Description

Both 4212E and 4212H represent the best directly heated transmitting and audio triode made in the UK by ITT , STC as the 4212E but the design originated with Western Electric in America as the famous type 212.

The pair 4212H we have here have top pip and designed for powerful  audio amplifiers.

The 4212H works at 14 Volts filament with max Anode Voltage of 3,000 thus the mA/V obtained is 8.4

Both valves tested and in working order.