This allowed [David] to move on to building the (obviously 6AU6 tube-based) amplifier for the photodiode output signals. Much like the Bendix G-15’s tape reader which served as inspiration ...

This allowed [David] to move on to building the (obviously 6AU6 tube-based) amplifier for the photodiode output signals. Much like the Bendix G-15’s tape reader which served as inspiration ...

For instance, a 6AU6 pentode vacuum tube needs aquiescent plate current of approximately 5 mA (Figure1). If the quiescent dc plate voltage is to be 60V, the loadresistance must be no more than 12 kΩ.