[Amps] New NXP BLF578XR 1200W LDMOS FET is "indestructible"

[W2XJ]

If the device is operated as a class T amplifier, the lower practical 
frequency limit would be around 40 kilohertz or less.

On 7/22/11 12:04 PM, Ron Youvan wrote:
> Pete N4ZR Smith wrote:
>
>> I wonder why 10 MHz is the lower limit?
>     I suspect the "device" is ordinary, it is the "built-in protective circuit" that protects it and
> has that low frequency limit.  (tiny torus core)  Reflected power reduces drive internally.