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What is A or C biasing?
The three standard forms of analog amplifier biasing are:class A - the amplifier is biased in the center of its linear operating range, this is the most linear but least efficient type of amplifier (because the transistors or tubes are always conducting, even when there is no signal to ampliify).class B - the amplifier is biased at the cutoff point, this is an efficient amplifier but is only linear if operated as a push-pull amplifier (because the transistors or tubes are in cutoff and not conducting when there is no signal and through one half of every cycle, a class B push-pull amplifier has two sections that operate on alternate halves of the cycle).class C - the amplifier is biased in hard cutoff so that only the peaks of the input signal are amplified, this is the most efficient amplifier (because the transistors or tubes may be in cutoff and not conducting for more the 85% of the time) but it is not capable of linear amplification. An amplifier biased as class C is only suitable for use in RF transmitter power stages, where a resonant LC tank circuit will be excited into oscillation by the output of the amplifier and complete the missing parts of the cycle.There are other forms of biasing (e.g. class AB) analog amplifiers that get some of the advantages of two of the standard forms. There are also forms of amplifiers having other nonstandard classes (e.g. class D) that are not analog amplifiers, but instead operate by amplifying pulses.
If you have a 120V Sony stereo amplifier that you plugged into a wall transformer to step down from 240V in Denmark and it worked fine then zapped can you replace the fried component to accept 240V?
== == If you have to ask a question like this please do not open the cover of the amplifier.
What is the difference between normal amplifier and magnetic amplifier?
normal amplifier is a mathametical operation analog the computer, magnetic amplifier is sound operation of the signal
What is Cascaded BJT amplifier?
pinagdugtong na madaming amplifier
Where is the Amplifier?
If you mean the Ignition Amplifier - it's a small rectangular Electronic part attached to the inner wing behind the battery - Bosch Part - about �50 to replace, they seem to go wrong at around 10/14 years - easy plug in replacement but use the heat sink conducting paste supplied with a new unit If you didn't mean the Ignition Amplifier - well - ignore all I've said.
How do you replace the amplifier in a 2002 ml 500?
How do you replace the amplifier in a 2002 ml 500? i need to know where in the 2002 ml500 i can find the audio amplifier
Should a 6L6 power tube replaced with another 6L6 power tube be rebiased?
Generally, when replacing power tubes, you should replace both tubes (or all four) using matching pairs (or quads) of tubes. Sometimes you can get away with not re-biasing with matched tubes, but it's always best to have a technician check it out, so that the tubes are running at their optimal plate voltage (not too hot or cold). Also you don't want to get nasty crossover distortion (not the good kind) which can happen with unbiased tubes in a push-pull (Class A/B) amplifier. [NOTE: unless you are an experienced technician, do NOT try and bias your own amplifier. Plate voltages can be lethal! Spend the $40 for the bench fee to have someone knowledgeable do it.]
What is a tube guitar amp?
A tube guitar amplifier basically is a large speaker which contains tubes inside the amplifier box for guitar use. Some are vintage and some are classic.
How do you replace your amplifier in your 2004 Kia Optima?
My amplifier was in the trunk on the passenger side wheel well. 3 nut and it comes right off.
What does it mean when two of the four tubes in my amplifier get very hot?
tubes are meant to get very hot - even so hot that they might burn you. If you are worried, check the anode current with a multimeter, and verify that it's within spec.
In a magnetic amplifier what happens if you replace the magnetic circuitry with capacitors?
Sh*t blows up.
What is A or C biasing?
The three standard forms of analog amplifier biasing are:class A - the amplifier is biased in the center of its linear operating range, this is the most linear but least efficient type of amplifier (because the transistors or tubes are always conducting, even when there is no signal to ampliify).class B - the amplifier is biased at the cutoff point, this is an efficient amplifier but is only linear if operated as a push-pull amplifier (because the transistors or tubes are in cutoff and not conducting when there is no signal and through one half of every cycle, a class B push-pull amplifier has two sections that operate on alternate halves of the cycle).class C - the amplifier is biased in hard cutoff so that only the peaks of the input signal are amplified, this is the most efficient amplifier (because the transistors or tubes may be in cutoff and not conducting for more the 85% of the time) but it is not capable of linear amplification. An amplifier biased as class C is only suitable for use in RF transmitter power stages, where a resonant LC tank circuit will be excited into oscillation by the output of the amplifier and complete the missing parts of the cycle.There are other forms of biasing (e.g. class AB) analog amplifiers that get some of the advantages of two of the standard forms. There are also forms of amplifiers having other nonstandard classes (e.g. class D) that are not analog amplifiers, but instead operate by amplifying pulses.
What is the round can looking metal thing accidentally burned the 2 tubes running from it what shall you do?
It sounds like your emissions canister replace the tubes.
What is difference between transistor and amplifier?
A transistor is an electronic component. By itself it has little use. An amplifier is a complete, functional circuit, generally made up of several components. A transistor can be a component part of an amplifier, however an amplifier may be constructed without any transistors (using vacuum tubes instead, for instance).
Do I need to have a cabinet for a Bugera 6262 amp head to work or can it work on its own?
You need a cabinet with a tube amp or you will potentially damage/destroy the power tubes and/or the amplifier.
What the purpose of a standby switch on a guitar amplifier?
to heat up the tubes in certain amplifiers , when the tubes are heated up you get a better sound and the tubes last longer is what I've been told. remember to change your tubes and have them adjusted on a yearly bases to keep the amp sounding great if you're an experienced player this really comes in handy. Get a pro to do it the first time so nothing bad happens.
If your tubes is block what can you do to unblock please help?
If you are a woman and your tubes are blocked so you can not get pregnant, you need to go to a doctor who specializes in women's problems. They have procedures to do that. Other people can unblock other tubes. It depends on what types of tubes are blocked. If the tubes in your ears are blocked, a different doctor can clear them out. If the tubes in your automobile engine are blocked, a mechanic will replace them.
