DE4 BBC Osram – Voltron LF – Mullard R – Voltron HF -Mullard BBC HF red band – Mullard BBC LF Green band – BTH Pip

Description

This section is about the following valves:

DE4 BBC Osram dates back 1924 and was one of early Mullard type used in broadcast receivers. Top pip

Voltron LF pairs receiver valves top pip

Mullard 2Volts R type same date of ORA very rare top pip

Mullard BBC HF red band top pip

Mullard BBC LF green band. Both HF and LF are bright emitter top pip

BTH R type top pip