[Amps] Minimum Value of RF Plate Chokes

[Colin Lamb]

"I think that a switchable choke arrangement is a FAR better option to consider, rather than building a separate, dedicated low-band amplifier...although if I could ever get my paws on a good 833A, or two, I just might eat those words!"

Instead of using a switch to switch in the extra choke for 160 meters, what about using a decoupling system similar to multiband antennas.  

At the bottom of the regular choke, use an LC combination that shorts rf to ground on all bands except 160 meters.  Below that, have an additional choke for 160 meters.  On 160 only, both chokes would be in series, because the bypass at the bottom of the regular choke would be "invisible".

73,  Colin  K7FM