Audio transformers that operate with loudspeaker voltages and current are larger than those that operate at microphone or line level, which carry much less power.
12.
Audio transformers used for low-level signals, such as those from microphones, often include magnetic shielding to protect against extraneous magnetically coupled signals.
13.
Like audio, LTC can be distributed by standard audio wiring, connectors, distribution amplifiers, and patchbays, and can be ground-isolated with audio transformers.
14.
You can also find audio transformers ( 1 : 1 ) that can isolate circuitry ( Midcom used to make them a long time ago for telephones and other applications ).
15.
Designated SCR-274-N, these Army radios were electrically almost identical to their ARA / ATA counterparts, except for receiver output and modulator sidetone audio transformer output impedance.
16.
Being magnetic devices, audio transformers are susceptible to external magnetic fields such as those generated by AC current-carrying conductors . " mains " power supply ( typically 50 or 60 Hz ).
17.
Due to the nature of vacuum tubes and audio transformers, the output impedance of an average tube amplifier is usually considerably higher than the modern audio amplifiers produced completely without vacuum tubes or audio transformers.
18.
Due to the nature of vacuum tubes and audio transformers, the output impedance of an average tube amplifier is usually considerably higher than the modern audio amplifiers produced completely without vacuum tubes or audio transformers.
19.
Although the low power produced by crystal radios is typically insufficient to drive a loudspeaker, some homemade 1960s sets have used one, with an audio transformer to match the low impedance of the speaker to the circuit.
20.
Audio transformers were originally designed to connect different telephone systems to one another while keeping their respective power supplies isolated, and are still commonly used to interconnect professional audio systems or system components, to eliminate buzz and hum.
