[Elecraft] KPA500 active devices!!

[Brian Alsop]

Just for curiosity, what do a pair of VRF2933 cost?  Availability?

73 de Brian/K3KO

Guy Olinger K2AV wrote:
> At any phase angle with no signal degradation.  Minimum 20 dB gain,
> 300 watt output 400 typical per device.  So being operated very
> conservatively.
> 
> On Sat, Apr 17, 2010 at 7:22 PM, S Sacco <nn4x.steve at gmail.com> wrote:
>> The VRF2933 is rated "3:1 Load VSWR Capability at Specifi ed Operating
>> Conditions" according to its datasheet; perhaps that's why there no
>> built-in ATU.
>>
>>
>>
>> On Sat, Apr 17, 2010 at 6:44 PM, Doug Faunt N6TQS +1-510-655-8604
>> <faunt at panix.com> wrote:
>>> There are two VRF2933's in push-pull, so they're not 750 watts each,
>>> but per pair.  There are only three amps in existance, and no devices have
>>> been destroyed (yet).  Again, 500 watts is a very conservative rating.
>>> It's been key-down for 10 minutes withy no problems.
>>>
>>> 73, doug
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