[Amps] IM distortion and such

[R L Measures]

On Jun 27, 2006, at 9:39 AM, Joe Subich, W4TV wrote:

>
> No, Will should have said "for minimum distortion at 1 KW PEP
> input and class B service at 2500 Volts, the maximum plate
> current at single tone ..."
>
> There is no indication that 1KW PEP class B produces more or
> less distortion that say 1500 W PEP in class AB2 at 3000 V
> on the plate.  You cannot arbitrarily apply one set of conditions
> to a completely different set of circumstances.
>
Class B has zero ZSAG.  Class AB2's ZSAG is typically 20% of  I-anode  
max.  For Producing IMD, Class B is the queen bee.
> 73,
>
>    ... Joe, W4TV
>
>
>> -----Original Message-----
>> From: amps-bounces at contesting.com
>> [mailto:amps-bounces at contesting.com] On Behalf Of R L Measures
>> Sent: Tuesday, June 27, 2006 9:20 AM
>> To: Tom W8JI
>> Cc: craxd1 at verizon.net; amps at contesting.com
>> Subject: Re: [Amps] IM distortion and such
>>
>>
>>
>> On Jun 27, 2006, at 2:46 AM, Tom W8JI wrote:
>>
>>>> They can be used on up in current, say for pulse circuits
>>>> and RF heating. The 400 mA is the maximum plate current at
>>>> single tone for minimum distortion. That's for 600 watts
>>>> PEP useful power each. That's listed in the tables on page
>>>> 2 or 3 under a class B RF amp.
>>>
>>> Will,
>>>
>>> Where did you get the idea 400mA is a "minimum distortion"
>>> condition?
>>
>> Good point, Tom.  Will should have said something like:  for minimal
>> distortion, the max rated anode-I is 400mA.
>>>
>>> 73 Tom
>>>
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Amps mailing list
>>> Amps at contesting.com
>>> http://lists.contesting.com/mailman/listinfo/amps
>>>
>>
>> R L MEASURES, AG6K. 805-386-3734
>> r at somis.org
>>
>>
>>
>> _______________________________________________
>> Amps mailing list
>> Amps at contesting.com
>> http://lists.contesting.com/mailman/listinfo/amps
>>
>>
>
>

R L MEASURES, AG6K. 805-386-3734
r at somis.org