Some Emtron amps use 4 or 5 or 6 x 100 ohm 15 watt resistors in
parallel.
Doug
Life is not a spectator sport.
-----Original Message-----
From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com]
On Behalf Of David Craig
Sent: February 2, 2009 10:53 AM
To: Bob Maser; AMPS
Subject: Re: [Amps] Glitch Resistor
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@tampabay.rr.com>
To: "AMPS" <amps@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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>
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