George Cortez Jr <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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Mike Bryce wrote:
the reason is not really clear..
but here goes
if there is a fault in one or both of the tubes, or a short circuit
someplace on the +2700 volt line
this resistor acts like a fuse and pops open.
the problem is that nasty 2700 volts!
as the resistor opens up, the voltage will simply jump over the now
carbonized resistor.
in fact, it would be more accurate to call it a high voltage fuse
instead of a resistor!
aside from the voltage it has to carry, it must be able to conduct the
necessary current as well.
that's why is a special critter... and very hard to come by.
perhaps I could purchase some from the one company via my heathkit
shop since they won't sell to anyone not in the trade??
Ill buy a spare just in case.
BTW the L4b L7 power supply board works great.
George NE2I
I
Mike, WB8VGE
SunLight Energy Systems
The Heathkit Shop
http://www.theheathkitshop.com/
J e e p
o|||||||o
Note: No trees were killed in the sending of this message, but a large
number of electrons were terribly inconvenienced
On Nov 6, 2007, at 1:42 PM, Tom Bowman wrote:
Hi,
Where is the resistor being used in the circuit?
Any idea why a 1 Ohm, 5% SPH resistor 66-SPH1R00JLF
<http://www.mouser.com/search/ProductDetail.aspx?R=SPH1R00JLFvirtualkey66200000virtualkey66-SPH1R00JLF>
Mouser, would not work?
73,
tom, WA3REY
On Nov 6, 2007 12:49 PM, MT <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>
wrote:
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