This is the same as a resistance R L in series with an inductance L = R L RC . There is a practical limit on the minimum value that R L can take, determined by the current output capability of the op amp.
32.
Continuous power measurements do not actually describe the highly varied signals found in audio equipment ( which could vary from high crest factor instrument recordings down to 0 dB crest factor square waves ) but are widely regarded as a reasonable way of describing an amplifier's maximum output capability.
33.
These were often used on 8-bit computers like the Altair; such a machine would have a " serial port " ( or more than one ) and the computer would have input / output capability on that port, so that any " dumb terminal " could be connected to it.
