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[AMPS] Load C as last resort safety

To: <amps@contesting.com>
Subject: [AMPS] Load C as last resort safety
From: zeitler@ibm.net (zeitler@ibm.net)
Date: Wed, 11 Aug 1999 09:14:17 -0700
Others have written:

>>the rf safety choke is there for a definite safety reason---to blow from
the
>>dc supply gitting thru the plate blocking cap--check it--bet it shorted.
>>new call w5set.
>

And then Rich added:


>When the DC blocker fails without a "safety choke" being present, the
>Load C itself acts as a protective spark gap, arcs,  and shorts the HV to
>ground.


My question: How long would it take a 10 ohm 10 watt high voltage safety
"fuse" that is in the B+ line to open in the event the plate bypass cap did
short and the load C saw the full anode potential?

Just curious. Wonder how dangerous this is to the operator other than the
gun shot loud POP that happens when the resistors open scaring the hell out
of the unsuspecting ham (in this case Ku7i).

Lane
Ku7i




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