On Apr 12, 11:52 am, "Richard Knoppow" wrote:
"wb5kcm" wrote in message

ups.com...



My Ranger is blowing the 5 amp primary fuse every once in
a while when
I turn it on. I have checked for any kind of intermittent
short but
unable to find anything. I am now suspecting inrush
current. My Ranger
has all the power supply mods. Solid state HV and LV power
supplies
with 330mfd LV cap and 165mfd HV cap. At first did not
suspect inrush
current due to having choke input filters but I suppose
with the solid
state rectifiers and the large caps it maybe happening.
Does anyone
have any suggestions to limit this inrush current in the
Ranger. Also,
does anyone know what the Ranger's nominal current
consumption is from
the 117 VAC source under full load? Any info is
appreciated. 73, Randy

You might try a slow blow fuse. You could be right
about the inrush current with the solid state recifiers and
much larger than original caps.

--
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Richard Knoppow
Los Angeles, CA, USA


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Posted via a free Usenet account fromhttp://www.teranews.com

Thanks for the idea Richard, I may give the sloBlo fuse a try. I was
reading something where some have used a Thermistor that will limit
inrush current.? Have you or anyone ever used a thermistor in a Ranger
or other transmitter?