Steve,
I don't know on this device as the spec sheet doesn't have any curve charts,
etc. One could probably get them from the manufacturer or I looked over where
to download them.
Best,
Will
*********** REPLY SEPARATOR ***********
On 5/21/05 at 9:00 AM Steve Thompson wrote:
>On Saturday 21 May 2005 04:44, Will Matney wrote:
>> What the spec sheet says is this;
>>
>> "The ARF1505 is an RF power transistor designed for off-line 300V
>operation
>> in very high power scientific, commercial, medical and industrial RF
>power
>> generator and amplifier applications up to 40 MHz."
>>
>> On the webpage it says they are for;
>>
>> "INDUSTRIAL, SCIENTIFIC, MEDICAL (ISM) & HF COMMUNICATIONS"
>>
>> Notice it saying amplifier applications. On the linear portion, that
>would
>> really be where you set the bias at. It should run fine at class A or AB
>> service. Also, being for HF communications would have to be
>linear........
>
>It might not be quite that simple. If I remember the app. note for the
>50MHz
>'linear', the IMD is always poor because the devices don't have a linear
>transfer characterisitic - the power in/out curve is banana shaped,
>without a
>straight line anywhere.
>
>I've also seen instability where devices intended to be driven hard into
>saturation for 'brute power' delivery are biassed for linear operation.
>
>Steve
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