[Amps] Novice heater choke question

[Jim Brown]

On Wed,5/24/2017 9:38 AM, Larry wrote:
> In point of fact, since the typical antenna system on 137 kHz has a 
> gain of -25 to-40 dBi (note the minus sign!!!), a 1 KW out amplifier 
> is quite reasonable!

N6LF published an excellent tutorial on how to determine the efficiency 
of short antennas for these bands in QEX a year or two ago. My guess is 
it that it's also on his website. He puts most of his published articles 
on his website.

73, Jim K9YC