An antenna input of 20 microvolts, modulated 100%, fully loads the output valve.
The audio output is 250 milliwatts into 600 ohms. (The set was usually configured to output into telephone lines.)
The set was designed for an external power supply, usually Type 3 (ac input). An emergency dc input supply, Type 4A, fed by 6v accumulators was also available. The Type 3 power supply had an input of 200-250 vac at 60 watts, with an output of 210vdc at 55ma (HT) and 6.3v @ 3.5A ac for heaters.
© Ian O'Toole, 2009. Page created: 28/04/03 Last updated: 4/12/2009