Yes, interesting. Years ago pi-wound chokes were replaced by solenoid
styles because of the very reason that solenoids did exhibit beneficial,
multi-parallel resonant modes. Operating in the vicinity of their
parallel modes, they are capable of presenting effective Zs in excess of
several meg-ohms to the plate tank. Higher performance plus being more
rugged and simple. I have experimented using both kinds. Have
experienced destruction of the pi choke--loud slamming of the segments
together during one of those mysterious unstable moments (back then I
blamed it on the proverbial cockroach; now I'm unsure due to all the
good info. on this reflector).
TNX/73, Roy K6XK/0
"RF Parts in California have a interesting New plate choke that may be
of interest to Amp Builders. The claims for this choke include broaband
coverage 1-60mhz with no resonances. It seems to be well rated at 2 amps
@ 7kv. Anyone run a dipper over this choke have experience with this
miraculous beast?"
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