Don't Worry Be Happy is a studio album by American recording artist Wanda Jackson. It was released in 1989 via Amethyst Records and contained 12 tracks. It was Jackson's thirty fifth studio recording released in her career and the third issued on the Amethyst label. Don't Worry Be Happy was a collection of gospel songs, including the title track, which was first recorded as a pop song by Bobby McFerrin.
Encore is a studio album by American recording artist Wanda Jackson. It was released in 1988 via Amethyst Records and contained 11 tracks. The album was a collection of gospel selections and her second album with the Amethyst label. It was re-released on the Tab label in 1989 and was sold exclusively in Europe. It was the thirty fourth studio album of Jackson's career.
Rickroll Island is the unofficial nickname for a small uninhabited island in the Bahamas that became an internet meme in the early 2020s. The name is not official and is primarily used by online communities after the island gained attention on social media and YouTube. The nickname references the internet prank known as “rickrolling,” which involves unexpectedly redirecting someone to Rick Astley’s 1987 song “Never Gonna Give You Up.”
Consider an NPN transistor circuit. During the positive half-cycle of the signal, the base is positive with respect to the emitter and hence the base-emitter junction is forward biased. This causes a base current and much larger collector current to flow. The positive half-cycle of the signal is amplified in the collector. During the negative half-cycle, the base-emitter junction is reverse biased and hence no current flows. No output flows during the negative half-cycle of the signal. Thus the positive-only amplified output is unfaithful.
A sufficient battery source in the base circuit keeps the input circuit forward biased even during the peak of the negative half-cycle. When no signal is applied, a DC current I C will flow in the collector circuit due to the battery. This is known as zero signal collector current.
The value of zero signal collector current should be at least equal to the maximum collector current due to AC signal alone.