04-16-2020, 08:31 AM
Yes, you can use an S-7 (Philco 60 speaker) to replace an SB (Philco 84 speaker). The SB, as you have noted, has a lower current capacity and therefore the size of the field coil is much smaller.
I'm frankly surprised that Philco, the constant cost cutters, even made a different speaker for models 84 and 37-84 when the S-7 could have been used instead.
The field coil of the S-7 isn't that much larger than that of the SB so you should have no problem installing the 60 speaker into your 84. The frames of both are the same size.
I'm frankly surprised that Philco, the constant cost cutters, even made a different speaker for models 84 and 37-84 when the S-7 could have been used instead.
The field coil of the S-7 isn't that much larger than that of the SB so you should have no problem installing the 60 speaker into your 84. The frames of both are the same size.
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Ron Ramirez
Ferdinand IN
