05-12-2021, 09:49 PM
Enjoyed the helpful radio information, radio suggestions, and sharing of past radios and history. The original service literature was a bonus. Great to see the information and data in such clear and pristine condition. Received the ARBE-III late today, just enough time to unpack it and check it out. Neat fairly compact unit with many outputs that will let me start all fed voltages to the radio at much lower levels. Then continue to increase voltages if all continues to function normally. Made very basic first checks on the radio by simply using a 9 volt battery, tubes removed. Checked for voltage at filament contact points for each tube. Including input and output from each transformer. Also injected modulated rf at antenna input and checked for modulated rf at points through out the radio, tubes installed, once again testing for continuity through wiring and transformers. So far no sign of opens, shorts, or dirty rheostats. Have found one open resistor, replaced two caps. Both rheostats and the antenna tap were so dirty they for the most part tested open. Pull up on the metal slotted brass tab and pull off rheostat knob, all is easy to clean. Hopefully I'll be able to spend some more time with it this week end.