11-14-2017, 09:50 PM
KThanks for help on this!
Here are the facts so far...at some point, electrolytics were replaced (although not to spec on all). She passes the dim bulb test ( power consumption is 30 w and fired up with 40 w bulb). It powers up but weak and has low volume. Good news is I have a 38-12 in working order which has identical tubes to swap. My concern is with some initial testing. Attached is a picture of the Rectifier and tranny connections from the schematics. My primary winding has continuity as do the filament pins. When I read from the Rectifier plates I should get 1050 ohms. BUT, I only get 745. Checking from the green center tap to pin 2 is 380 and pin 3 is 360. This seems too low but looking for your expert advise.
Mark
Here are the facts so far...at some point, electrolytics were replaced (although not to spec on all). She passes the dim bulb test ( power consumption is 30 w and fired up with 40 w bulb). It powers up but weak and has low volume. Good news is I have a 38-12 in working order which has identical tubes to swap. My concern is with some initial testing. Attached is a picture of the Rectifier and tranny connections from the schematics. My primary winding has continuity as do the filament pins. When I read from the Rectifier plates I should get 1050 ohms. BUT, I only get 745. Checking from the green center tap to pin 2 is 380 and pin 3 is 360. This seems too low but looking for your expert advise.
Mark
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