02-17-2010, 03:15 PM
Sounds to me like the original has shorted turns and needs to be replaced.
According to Philco's 1957 parts catalog, you need one with a 9000 ohm primary impedance to match a 3.5 ohm voice coil (secondary). The same catalog says 15 watts which I believe is a mistake; push-pull 6K6 tubes have to be pushed really hard to get 10 watts output.
And as Jim pointed out, make sure that power transformer is still good! A lot of those 1946-47 Philco radio-phonograph consoles have burned out power transformers; this was apparently a weak spot in those models (46-1209, 46-1226, 47-1227, 47-1230).
According to Philco's 1957 parts catalog, you need one with a 9000 ohm primary impedance to match a 3.5 ohm voice coil (secondary). The same catalog says 15 watts which I believe is a mistake; push-pull 6K6 tubes have to be pushed really hard to get 10 watts output.
And as Jim pointed out, make sure that power transformer is still good! A lot of those 1946-47 Philco radio-phonograph consoles have burned out power transformers; this was apparently a weak spot in those models (46-1209, 46-1226, 47-1227, 47-1230).
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Ron Ramirez
Ferdinand IN
