[Elecraft] HF amp kits

[Bob Nielsen]

On Apr 5, 2007, at 9:17 AM, Fred Jensen wrote:

> Chris Kantarjiev wrote:
>> [warning thread drift]
>> The Linear Amp kits seem to need a fair amount of drive. I've been
>> idly thinking about a linear that would allow me to drive it with
>> my barefoot K2 and get 600-800 watts out for CW.
>
> Didn't there used to be a Part 97 gain limit of 10dB for RF amps?   
> Is it still there?  I'd go check myself but I've been reading the  
> regs trying to sort out RM11306 for comments, and my eyes are now  
> legally crossed from all the Fed-Speak.
>

The limit is 15 dB and is still in the requirements despite the  
recent loosening of Part 97.  That should give something over 400  
watts when driven by a K2. I don't recall whether the "easily- 
modifiable" rule is still there, so it may be possible to have an amp  
with an attenuator on the front-end (I heard that one of the Tokyo  
High Power amps does this, but haven't verified that).

73, Bob N7XY