[Tigers] Ballast resistor voltage

[Ron Fraser]

Andy
	I have always read 9 volts.  I see the Shop Manual states 6-7 volts
but you have to remember this is the stock coil, points and condenser
system.  I checked my Tiger and I see a 1 volt drop but my system is not
stock so all bet are off there.

	The Shop Manual has a section on the voltages in the stock ignition
system and it states 6.6 v at the ballast resistor when the points are
closed.

	The Ballast Resistor is around 2 ohms so your not going to see a big
drop in voltage.  I believe the voltage drop will vary some as the resistor
heats up as it will with other factors in the ignition system.     The stock
coil, points and condenser system is a tuned electrical circuit; beyond that
description - I'm not an electrical wizard.

Ron Fraser

-----Original Message-----
From: tigers-bounces at autox.team.net [mailto:tigers-bounces at autox.team.net]
On Behalf Of awtiger at cox.net
Sent: Monday, September 26, 2011 9:38 AM
To: tigers at autox.team.net
Subject: [Tigers] Ballast resistor voltage


Hey, guys:

How much voltage should get through the ballast resistor going to the
points?  My multi-meter shows a full 12 volts going in and 10 volts coming
out.  I was always under the impression that the resistor was supposed to
cut the voltage to the points almost in half.  Which is correct?

Thanks,
Andy Walker
Edmond, OK
B382001600LRXFE
TAC #740
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