02-29-2008, 11:50 AM
You have two choices:
1. Change the 50A5 back to the original 35L6, rewiring the socket as needed; or
2. Leave it as is.
If you leave things as they are, it might not be a bad idea to leave R5 in place, given today's higher line voltages. 100 ohms is probably a bit overkill in this case, but some calculations using Ohm's law would yield a more accurate resistance to use given, say, 127 volts to represent today's line voltage as opposed to the 110-115 of yesteryear.
Carefully take some voltage readings and see what kind of filament voltages you have with R5 in place. That will help determine where you stand. But be careful - bear in mind that is an AC/DC set, and you should make your measurements with the radio plugged into an isolation transformer.
1. Change the 50A5 back to the original 35L6, rewiring the socket as needed; or
2. Leave it as is.
If you leave things as they are, it might not be a bad idea to leave R5 in place, given today's higher line voltages. 100 ohms is probably a bit overkill in this case, but some calculations using Ohm's law would yield a more accurate resistance to use given, say, 127 volts to represent today's line voltage as opposed to the 110-115 of yesteryear.
Carefully take some voltage readings and see what kind of filament voltages you have with R5 in place. That will help determine where you stand. But be careful - bear in mind that is an AC/DC set, and you should make your measurements with the radio plugged into an isolation transformer.
--
Ron Ramirez
Ferdinand IN
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