The Red Light District, p4
We’d better not risk another frontal assault, that rabbit’s dynamite! We need to design the rest of the power supply circuitry. This should be relatively simple, other than the complication discussed earlier, the need for separate B+ supplies for the...The Red Light District, p3
Who are you, who are so wise in the ways of science? What do we ask of the driver stage? Concomitant with low output stage bias voltage requirement is low drive requirement. And here, the EL84 is truly a star. All it needs is roughly 11V peak (7.9VRMS). The input...The Red Light District, p2
How does this bear up in practice? Let’s look at dynamic impedance measurements of red LEDs in the singular and then arrayed as we propose to do here. Examination of the published voltage versus current curves of a number of ordinary LEDs indicated that at 10mA...The Red Light District: A 15W Push-Pull Amplifier
What happens if you take a traditional EL84 push pull design and optimize it for overload recovery? Light will be shed on this issue.