01-13-2008, 12:11 PM
Were loctal tubes used for a long time? I mean if you come across a device using 7F7s and 7N7s could you guess that it might be more likely to be from a certain decade?
loctal tubes and dating
01-13-2008, 12:11 PM
Were loctal tubes used for a long time? I mean if you come across a device using 7F7s and 7N7s could you guess that it might be more likely to be from a certain decade?
01-13-2008, 12:24 PM
Mostly you see loctals from the early to late 40's, not a lot were used in the late 30's that I can recall and they were used I think into the early 50's.
01-16-2008, 11:48 PM
Philco began wide use of loctal tubes in its 1940 models, and continued to use them for a few years after World War II.
-- Ron Ramirez Ferdinand IN
« Next Oldest | Next Newest »
Users browsing this thread: 2 Guest(s) |
|