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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.
raquel

Showing 1 response by gs5556

gs5556
1,243 posts
 
Transistors and tubes do not create voltage or current. They let current pass through them. The voltage that moves the current comes from the power supply. The current output is determined by the power supply voltage and resistor values around the transistors.

Transistors/tubes act like water valves - the valves neither create the water nor the water pressure behind them. They simply let water pass that's already there - just like transistors which pass current that's already there (simply put).
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