[Amps] inexpensive HV fuse

[Bill, W6WRT]

ORIGINAL MESSAGE:

On Thu, 23 Jul 2009 08:24:24 -0700 (PDT), Radio WC6W <wc6w_amps at yahoo.com>
wrote:

>
>  Damage is avoided by shutting off the power, veryyyy quickly, rather than by shunting it.
>

REPLY:

Nothing wrong with shutting off the PS quickly, but if you leave the filter caps
charged, any damage from the B+ arc will involve much more energy than if the B+
line were opened by a fuse and/or limited by a glitch resistor and/or crowbarred
to ground. 

In other words, the quick shut-off should not be the only protection device. 

73, Bill W6WRT