AGC stands for Auto Gain Control.
In simple terms, it is a special circuit that samples (or listens) to a signal that is meant to be recorded, and automatically adjusts the input (gain) levels to optimal levels for the signal it has sampled.
Most serious recording enthusiasts, however, don't like the resulting, "safe" levels and prefer to set the gain manually.
Some modern recording devices combine these three functions into what they call an "AGC/Compressor/Limiter Function", basically a range of combinations of the three functions, designed for specific, common situations, as a convenience.
The use of a compressor limiter is to lower the volume of loud noises and to amplify quiet ones. You can get more information about this at the Wikipedia. Once on the website, type "Compressor limiter" into the search field at the top of the page and press enter to bring up the information.
If you suspect the fuse, check ALL of them. It also has a limiter switch in the wiring just before the compressor and a cycling switch on the accumulator line.
ABC = Ceramic Body AGC = Glass Body
AGC is a fuse type IE; the glass ones with the metal tips on the ends.
Are you sure you do not mean AGC? AGC stands for Automotive Glass Cartridge (Fuse). AGC fuses are fast acting fuses that will blown very quickly to protect components.
2 types 1.simple AGC 2.delayed AGC
AGC fuses have glass body. ABC fuses have a ceramic body.
Oil in a AC compressor is there so that the mechanical parts don't over heat from friction
Recievers
Which style of fuse do I use for 1965 SS Impala, sfe or agc?
In a normal AGC, even the unwanted signals gets amplified, But u dont want that to happen, so until the Input Signal strength reaches a threshold, the AGC feedback signal is not applied to the amplifier biasing circuit..
This is a fault also known as breathing. Too much sound compression can cause the compressor/limiter circuit to engage and disengage rapidly.