[Amps] HV resistor source

[Jeff Blaine]

That is for a glitch - the resistor limits the current in the even the tube 
(or whatever) arcs and dumps the B+ to ground.  The caps will discharge 
through that resistor.

I went through that sourcing a couple of months back.  Check out the ohmite 
power resistors - about 4" long vitreous enamel covered 50w, if you have the 
room.  Should do the job.

73/jeff/ac0c
www.ac0c.com
alpha-charlie-zero-charlie

-----Original Message----- 
From: Drax Felton
Sent: Tuesday, April 16, 2013 11:06 PM
To: 'Jim Garland' ; Amps at contesting.com
Subject: Re: [Amps] HV resistor source

So then what is the Radio Handbook talking about where it uses a 10ohm/20w
one between the plate choke and the +HV?



-----Original Message-----
From: Jim Garland [mailto:4cx250b at miamioh.edu]
Sent: Wednesday, April 17, 2013 12:04 AM
To: 'Drax Felton'; Amps at contesting.com
Subject: RE: [Amps] HV resistor source

That's going to be quite a resistor, inasmuch as 4KV across a 30 ohm
resistor amounts to a half million watts of dissipation!  A 4KV pulse 50uS
wide, once per second, would dissipate 25W.
73,
Jim W8ZR

-----Original Message-----
From: Amps [mailto:amps-bounces at contesting.com] On Behalf Of Drax Felton
Sent: Tuesday, April 16, 2013 9:53 PM
To: 'Amps'
Subject: [Amps] HV resistor source



So where does one find a 30 to 50 ohm 25 watt resistor that can safely
handle 4000v?





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