02-03-2014, 09:24 AM
Shunting the meter reduces its sensitivity so its deflection is reduced. For maximum sensitivity you really want no shunt.
Do you get any deflection when the set is first turned on before the tubes warm up? There should be no deflection until the tubes start drawing plate current, which causes the shadow to widen. If you are getting any deflection at all on initial power on, then something like a leaky bypass cap is drawing current through the meter. You can remove the RF and converter tubes to see if any other load is causing the current through the meter.
Do you get any deflection when the set is first turned on before the tubes warm up? There should be no deflection until the tubes start drawing plate current, which causes the shadow to widen. If you are getting any deflection at all on initial power on, then something like a leaky bypass cap is drawing current through the meter. You can remove the RF and converter tubes to see if any other load is causing the current through the meter.
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