i have a al 811h plate current meter that is not lightin up. meter works fine. bulb is not blown.(checked with ohm meter) grid meter fine. any directions??
thanks jim N4ZY
There is a schematic here:http://www.ameritron.com/man/pdf/AL-811H.pdf
Looks like there is a winding from the transformer that drives a full wave bridge and a couple of caps. That is the voltage source for the bulbs and it's directly connected to the bulbs with no switching or other control. Check the output of that bridge rectifier for DC output and go from there.