The supply voltage is shared between components in a series circuit, so the sum of the voltages across all of the components in a series circuit is equal to the supply voltage, \({V_s}\).

Series and parallel circuits Current in series circuits Voltage across components in a series circuit Current in parallel circuits Voltage across components in a ...

It's easy to look at the Anker F3800 Plus and mistake it for the original. From the front, there's only one tell, the updated ...

There are a small handful of old tubes that need an impressively low voltage to work, though, and [J.G.] has put a few of them to work in this battery-powered audio tube amplifier. The key to the ...