|[AMRadio] A grounding stick idea|
jpl15 at panix.com
Mon Jun 5 15:00:35 EDT 2006
Wouldn't a solenoid, wound of say, 50 close-spaced turns of fairly heavy
guage insulated wire, and wrapped/taped well (to resist the sudden
mechanical forces deriving from the ampere-turns of the coil) - be a good
compromise between 'dead-short' poultry-bars and the 'resistance' kind?
The idea being that a step-function wavefront would encounter the
reactance of the coil, damp itself a bit, ring back and forth, and still
have a low-Z DC path to ground - kind of a "soft-start" approach. I do
agree - I'd be leery of any kind of regular resistor (that I could easily
lift) in that path of a hefty HV cap discharge - if not the first time,
then how many subsequent blasts before the resistor changes impedance to
the meg-ohm range....?
Another point: I have several TMs and training manuals from the Army,
Navy, and Air Force. ALL of them show grounding sticks made of wooden
dowels or 1X1 lumber, with the usual heavy braid and hooked 'business
end'. As late as the mid 60s these are shown.
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