In a nutshell, transistors of all types are current devices, whereas tubes are voltage devices. In most of the "better" solid-state amps, the input stage uses FET's, the gain stage has MOSFET's, and the output stage has bi-polar transistors. This arrangement is usually chosen because it capitalizes on the best characteristics of each type of transistor.
Are MOSFET's voltage, not current, devices?
In reading the specs of a very well known line of amps that use MOSFET output transistors, I noticed that they have surprisingly low maximum output current.
I know that MOSFET's are said to mimic the operation of a vacuum tube (hence, the more tubey sound as compared to bipolar transistors). Is it also the case that, like tubes, they produce primarily voltage and not current?
Thanks in advance for your responses.
I know that MOSFET's are said to mimic the operation of a vacuum tube (hence, the more tubey sound as compared to bipolar transistors). Is it also the case that, like tubes, they produce primarily voltage and not current?
Thanks in advance for your responses.