[Amps] Glitch Resistor

[David Craig]

    Just curious (and yes I have read Orr et al)- Why is 50 ohms the 
(supposed) target value for glitch?  I use a pair of 25 ohm 50w in parallel 
on one GS35b amp, and my latest one uses a single 10 ohm 110w Ohmite.  No 
flashovers in either (well, the first one did before I discovered the need 
for glitch protection, hi).  I understand the higher the R the lower the 
current surge during a glitch but 50 ohms still seems a bit high to me.
    Re the 30 AWG I recall that was essentially a HV fuse- 1" or so of wire 
between insulators that would "blow" during a surge.  That said, is there 
any real advantage of using a fuse as opposed to a resistor, assuming 
arguendo there isn't a catastrophic short in the tube?

73 Dave N3DB

----- Original Message ----- 
From: "Bob Maser" <bmaser at tampabay.rr.com>
To: "AMPS" <amps at contesting.com>
Sent: Sunday, February 01, 2009 10:58 PM
Subject: [Amps] Glitch Resistor


> I'm having a hard time finding a 50 ohm 50W resistor for a glitch resistor
> for my 4CX1500B amp.  Seems I remember that I could also use some AWG 30 
> for
> a glitch.  Can someone enlighten me?
> Bob W6TR
>
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