[Amps] Building or Buying a Tuned Input Network

[Tony King - W4ZT]

Bill Turner wrote:
>   ORIGINAL MESSAGE:
> 
> At 09:14 PM 1/22/2006, Tony King - W4ZT wrote:
> 
>> I hand made a board of my own (had my own nice 5 amp contact DPDT 
>> relays, Arco trimmers and cores and did essentially the same thing but 
>> I did leave larger pads to allow for the trimmers < 
>> http://gs35b.com/input/index.html>.
> 
> 
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 
> Boy are you thorough! Nice work.
> 
> Changing the topic slightly, how much drive does a GS-35b need for 1500 
> watts output? It's probably on the web somewhere but I've looked and 
> can't find it. The comparison chart between it and the 8877 shows a ~2dB 
> difference in gain but no actual drive numbers. I could figure it in 
> reverse but I'd like to hear from someone with actual experience.
> 
> 73, Bill W6WRT

Thanks :)
Assuming a good tuned input match and the plate tank adjusted with a 
good Q, expect **about** 75 to 80 Watts drive for 1500 out. The 13 dB 
gain figure is quite close so a 100 Watt transceiver will do all you 
"need" with some headroom.

73, Tony W4ZT