[Elecraft] Subject: The G5RV trivia

[Fred Jensen]

Bob:  My memory from 1956 is a bit thin, I was 16 then, but I don't 
remember RF inductors wound on "cores", unless you count a plastic coil 
form with a 5-pin base to be a "core."  Not sure ferrite had been 
invented.  [:-)  The Pi-network was a big deal then, those of us who 
couldn't afford the two capacitors used parallel resonant tanks with one 
capacitor with link coupling.  Interestingly, it did harmonic 
suppression and also matched whatever impedance was at the shack end of 
the feedline to the plate impedance of the PA.  I don't recall anyone 
talking about SWR.

73,
Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County

On 3/23/2020 6:53 PM, Bob McGraw K4TAX wrote:
>
> Regarding connecting a balanced feed line to the transmitter, Fig 
> 14-21 (B) reference is made to do so using a pair of "balun" coils.   
> This would imply a proper balun would contain two separate coils 
> existing on two separate cores.
>
> Yes, more interesting trivia.
>
> 73
>
> Bob, K4TAX