[Amps] Resistor Before the Capacitor? (long)
gdaught6 at stanford.edu
gdaught6 at stanford.edu
Mon Feb 8 10:38:50 PST 2010
Several people have contributed to this topic. I'm not sure they have all understood
the function of a "glitch" resistor, at least MY idea of the function of a glitch resistor.
Putting the resistor "before the capacitor" will certainly limit the huge start-up
charging surge, thereby helping to protect the rectifier diodes, which cost $0.11 each
the last time I bought a hundred of them. It will also limit the DC (steady-state)
current supplied to an HV short, like an arc in a tube. But the full energy stored in
the capacitor WILL BE AVAILABLE to vaporize some bits inside your tube.
The tube costs well over 11 cents, so I choose the "after the capacitor" position for
the resistor.
73,
George T Daughters, K6GT
CU in the California QSO Party (CQP)
October 2-3, 2010
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