push-pull output
41Differential amplifier — symbol The inverting and non inverting inputs are distinguished by − and + symbols (respectively) placed in the amplifier triangle. Vs+ and Vs− are the power supply voltages; they are often omitted from the diagram for simplicity, but of course… …
42Guitar amplifier — Mesa Boogie Mark IV, a guitar combo amplifier A guitar amplifier (or guitar amp) is an electronic amplifier designed to make the signal of an electric or acoustic guitar louder so that it will produce sound through a loudspeaker. Most guitar… …
43Single-ended triode — In a single ended triode (SET) vacuum tube electronic amplifier the entire audio signal waveform is amplified by the power triode, in contrast to push pull amplifiers where two output tubes work together in phase opposition. Small signal audio… …
44Fender Champ — The Fender Champ was a guitar amplifier made by Fender. It was introduced in 1948 and discontinued in 1982. [ Teagle, J. and Sprung, J.: Fender Amps: The First Fifty Years ] An updated version was introduced in 2006 as part of the Vintage… …
45Mesa Boogie Mark Series — The Mesa Boogie Mark Series is a series of guitar amplifier made by Mesa Engineering (more commonly known as Mesa/Boogie ). Originally just referred to as Boogies, the product line took on the moniker Mark Series as newer revisions were put into… …
46Strength training — This article is about the basic principles to train muscular strength. For strength training using free weights or weight machines, see weight training. The lat. pulldown, which strengthens the arms and back Strength training is the use of… …
47Optical fiber connector — An optical fiber connector terminates the end of an optical fiber, and enables quicker connection and disconnection than splicing. The connectors mechanically couple and align the cores of fibers so that light can pass. Better connectors lose… …
48Coaching stock of Ireland — A wide variety of hauled coaches have been used on the railways of Ireland. This page lists all those since 1945. Contents 1 Republic of Ireland 1.1 Laminate stock (now withdrawn) 1.2 Park Royal stock (now withdrawn) …
49Phase inversion — A phase inversion is the introduction of a phase difference of 180° into a waveform. As such, it is more properly called a polarity inversion, as phase can differ relative to frequency but polarity is absolute.For example, in a push pull power… …
50British Rail Class 47 — Brush Type 4 British Rail Class 47 Two Class 47s, Nos. 47424 and 47607, at Bangor station with a passenger train in 1987 Power type Diesel electric Builder Brush Traction …
