operation of monolithic amplifier?
480313
Monolithic microwave amplifiers are widely used in the industry for signal amplification. The majority of these amplifiers are specified to operate with fixed current. In the real world of low voltage supplies, fixed current is difficult to realize. Normally, a constant-current source is approximated by a voltage source, RF choke and a resistor.\n\nthe typical specifications of these amplifiers. One significant feature is that they can be operated over a wide voltage range, 2.8 to 5V. This makes them useable for battery powered applications\n\n\n\nhttp://360.yahoo.com/jcbroogley
219996
This site has a wealth of information. I often use it as a starting point when looking for a new type of circuit:\nhttp://www.discovercircuits.com/list.htm
1147352
I have a lot of fun using  my RP300a processor. Ive come really close to getting the sound of hendrix. I know he used a Unicord Univibe pedal. Phaser. A Marshall 100 watt Super lead amp, and hall reverb. He adds a fuzzface for the solo.
79059
The way that I have always determined whether or not an element or even device is passive or active is whether or not that device requires a source of electricity to perform its function.  For example, a resistor, capacitor, inductor, or even diode merely takes a signal and affects it in some manner consistant with its function.  A transistor, on the other hand, requires a third input to perform its function.  This would be true for IC's like op amps as well.  This distinction can also be extended to devices such as cavity combiners would be a passive element while an amplifier would be considered active.
70241
Build an amplifier starting with transistors.
631375
Hi\nhave a look at the following link:\n\nhttp://en.wikipedia.org/wiki/Digital_to_analog_converter\n\nThanks
115851
transistors amplify signals by collecting signals on two entry points (collect, gate), and releasing the resulting (overdriven) signal by only one outry point (release).
861559
try http://www.dbpoweramp.com
904869
amplification by billion volts!
727327
Passive pickups don't need power, and usually have a volume and tone control. The tone control is a treble filter,as you turn the knob you control how much treble is thrown away.\n\nAn active pickup has control circuitry that needs power - usually from a 9 volt battery. The control curcuit enables you to have much more control over the signal produced by the pickup, and therefore the sound the instrument makes.\n\nMost pickups sound best plugged into the high impedence socket on the amp. Most pickups are high impedence, some special ones are low impedence, and can use much longer leads. The difference is quite technical and you don't need to know the details, just go with what sounds best. If in doubt use the high impedance one.\n\nDon't apologise for your lack of knowledge or experience. Everybody was in the same position once. The only stupid question is the one you want to ask but don't!\n\nKeep on rocking!
44736
You need a high powered amplifier.
900314
The other answers are good, but there is more to it than that.  It depends on what the amplifier is for.  \n \nAn audio amplifier will want a high input impedance because the original signal is usually very small.  It could be from a detector in your receiver or the playback signal of your CD or tape or even record player.  A low input Z would not leave any signal to amplify  As pointed out, this amp will need to feed the fairly low impedance of your speakers so its output should be low Z.  \n \nIf your are amplifying a radio signal for broadcast you want 50 ohm impedance on the input and output from stage to stage.  \n \nTelevision amplifiers typically use 75 ohms impedance.  \n  \nSome amplifiers may have a low input Z and high output Z to match different impedance's, depending on the circuitry.  \n \nSee wikipedia and other links below.
441296
In certain low volume and high speed circuits, transistors will always have their places. ALthough their are now many more radio chips.\nMIKE
279103
I think you can...   the fact is that it's cheaper to do it with passive components and you will get a better response. I say because I had a project of radiocommunications and I tried an amplifier with an opamp which supposedly was for RF (the datasheet published a bandwidth of 1 GHz) for a band-pass centered a 220 MHz. The amplifier was not cheap but the response was very bad...  I ended with a RLC filter that did the job very good. That's my experience, and based in it I strongly recommend passive filters for RF applications.
619063
For the circuit to work as an amplifier you need to make the collector voltage, move up and down in response to any input signal variations. These changes in collector voltages are coupled out through the capacitor to provide the output voltage signals, This means that in the absence of any input signal the transistor should have a moderate set of applied bias voltages/currents to give room to move up and down under the influence of any input.
6099
I may be living in the past but I see transistors every day.  The 2-diode analogy is pretty close to the mark.  They meet at the base, pointing in for PNP and out for NPN.  Check them that way with your multimeter set on diode setting.  If the reading is inconclusive you may have to de-solder them from the circuit.
244997
An operational amplyfier has a gain of one.Thetrefore it is very ussefull in logic circuitry.