Modern Class AB amplifiers commonly have peak efficiencies between 30 – 55 % in audio systems and 50-70 % in radio frequency systems with a theoretical maximum of 78. 5 %.

Class AB sacrifices some efficiency over class B in favor of linearity, thus is less efficient ( below 78. 5 % for full-amplitude sinewaves in transistor amplifiers, typically ; much less is common in class-AB vacuum-tube amplifiers ).

The output stage ( outlined in cyan ) is a Class AB push-pull emitter follower ( Q14, Q20 ) amplifier with the bias set by the V < sub > BE </ sub > multiplier voltage source Q16 and its base resistors.

* AB Class amplifier

For example, class AB amplifiers are around 25 or 50 % efficiency while Class D amps are much higher ; around 80 % or more efficiency.

Since an 800 watt amplifier built with standard Class AB technology would be very heavy, some acoustic amplifier manufacturers use lightweight Class D amplifiers, which are also called " switching amplifiers.

Since an 800 watt amplifier built with standard Class AB technology would be very heavy, some acoustic amplifier manufacturers use lightweight Class D amplifiers, which are also called " switching amplifiers.

# REDIRECT Electronic amplifier # Class B and AB

However, individuals enlisting for six years are promoted from AB to Airman First Class ( A1C ) upon completion of either technical training ( or 20 weeks thereof ) or the indoctrination course for Combat Control or Pararescue.

In the 1970s and 1980s, most PA amplifiers were heavy Class AB amplifiers.

Class AB and class B dissipate less power for the same output as class A ; distortion can be kept low by negative feedback.

# Redirect Electronic amplifier # Class B and AB

# REDIRECT Electronic amplifier # Class B and AB

GMC cadets on contract are also considered to be inactive enlisted members of the Air Force Reserve serving without pay, ranging from Airman Basic ( AB, pay grade E-1 ) to Staff Sergeant ( SSgt, pay grade E-5 ) with higher grades based on prior enlisted military experience in the Active or Reserve Components or other qualifying credentials ( i. e., senior Civil Air Patrol cadets or former high school AFJROTC cadets with four years of participation enlisting at Airman First Class

Introduced in the Mark II-B was the Simul-Class power amplifier stage, which combined tubes running in Class A and Class AB through the same output transformer.

In, Bauman played in the Braves organization, going 0 for 1 in Class AAA, and posting fair stats in Class AA (. 275, 55 BB, 10 HR in 276 AB ), while splitting time with Ray Sanders.

He knows your signals, what is expected of him and the way the Class is conducted, right up through the flash-bulbs of the photographers ''.

This is the third time in 28 years of Junior Showmanship at Westminster that a lady Handler has judged the Class.

At the recent horse show convention in New York it was stated that this Intermediate Judging Class is meeting with great success and will be a great help to future judges in the horse world.

This Class can be just as successful in the dog world if it is given a chance.

Mr. Booker T. W. Jones Food Technician First Class is not sad ; ;

Maximum power output from a Bluetooth radio is 100 mW, 2. 5 mW, and 1 mW for Class 1, Class 2, and Class 3 devices respectively, which puts Class 1 at a lower level than mobile phones, and the other two classes much lower.

* Video ( Princeton University, September 7, 2003 )-" Assembly for the Class of 2007: ' D is for Digital and Why It Matters '"

Class actions are commonly referred to as class action suits ; however, this phrase is redundant as the historical distinction between " actions " at law and " suits " in equity is no longer recognized.

Class Action is regulated by art.

Mercer is perhaps best known as the ringside commentator of World Class Championship Wrestling in the 1980s.

Terms invented by Adams in relation to the strip, and sometimes used by fans in describing their own office environments, include “ Induhvidual .” This term is based on the American English slang expression “ duh !” The conscious misspelling of individual as induhvidual is a pejorative term for people who are not in the DNRC ( Dogbert's New Ruling Class ).

DMT is classified in New Zealand as a Class A drug under the Misuse of Drugs Act 1975.

DMT is classified in the United Kingdom as a Class A drug.

He is probably best known today for his historical work on the British radical movements in the late 18th and early 19th centuries, in particular The Making of the English Working Class ( 1963 ).

( Skill level: successful completion of a Class 6 rapid without serious injury or death is widely considered to be a matter of great luck or extreme skill and is considered by some as a suicidal venture )

Class 6 is no longer widely used.

In continental Europe 0-6-0 ( or " C ") diesel-hydraulics, similar to the short-lived British Rail Class 14, are widely used.

The Dipstick, with a reported accuracy of. 01 mm ( 0. 0004 inches ), is also the most widely used and accepted Class 1 profiler for the purposes of calibrating other profilers.

As a token of appreciation for fathering a brand new form of motorsport that remains widely popular today, the Missouri Sports Hall of Fame inducted Chandler into their Class of 2006.

The three-component theory of stratification, more widely known as Weberian Stratification or Three Class System, was developed by German sociologist Max Weber with class, status and party as distinct ideal types.

& Rakim, Pete Rock and CL Smooth, Nas, and Diamond D. He released a solo album titled First Class, and his shelved The LP was widely bootlegged.

The topic was widely discussed in academic circles in the 1960s following the publication of The Affluent Worker in the Class Structure ISBN 0-521-09533-6 by John H. Goldthorpe in 1963.

Class sizes range widely with anywhere from 25 students to as many as 200 students in each class section.

The Creativity Index includes four elements: “ the Creative Class share of the workforce ; innovation, measured as patents per capita ; high tech industry, using the Milken Institute's widely accepted Tech Pole Index …; and diversity, measured by the Gay Index, a reasonable proxy for an area ’ s openness " ( 2002, pp. 244 – 5 ).

It read ' Class of 2012 f *** yea ' the school condemned the wording of this banner as tasteless however the engineering work involved in its set up was widely compliment across Northern Ireland with page 3 of a prominent local newspaper the News Letter being dedicated to it and poor disciplinary handling of the pupils involved.

The LMS Ivatt Class 4 2-6-0 is a class of steam locomotive primarily designed for medium freight work but also widely used on secondary passenger services.

This Class was known widely as the Schools Class because all 40 of the class were named after prominent English public schools.

She received a PhD in English and American Studies from UC Berkeley, and in 1997 published the widely cited book, White Trash: Race and Class in America.

Another officer, Captain Robert B. Johnson, U. S. Army, West Point, Class of 1965, related experiences corroborating the testimony of numerous returning veterans to the effect that free-fire zones, if not official policy, were widely understood as being unofficial policy conveyed by osmosis: