07-19-2023, 02:32 PM
The original speaker used in al Model 60 sets was the S-7.
Other Philco models which used it include the following:
37-60, 37-61, 37-62, 37-610B, 37-610T, 37-620B, 38-62, 38-9T, 38-10T, 38-60, 38-620
In a pinch, you could use a K-7 or K-21 speaker, which may be found in the following Philco models:
19B (NOT code 128), 43B, 71B, 71L, 89B, 89H
Another possibility is the S-14:
610F, 610T, 620, 625 (all 1936 models)
Really, any 1932-1938 8 inch Philco speaker with an 1125 to 1140 ohm field coil can be made to work with the proper output transformer made to match a single 42 or 6F6G tube to a 1 ohm voice coil. For more ideas, look over the Philco Speakers spreadsheet - speakers.zip - available here:
https://philcoradio.com/phorum/showthread.php?tid=215
Other Philco models which used it include the following:
37-60, 37-61, 37-62, 37-610B, 37-610T, 37-620B, 38-62, 38-9T, 38-10T, 38-60, 38-620
In a pinch, you could use a K-7 or K-21 speaker, which may be found in the following Philco models:
19B (NOT code 128), 43B, 71B, 71L, 89B, 89H
Another possibility is the S-14:
610F, 610T, 620, 625 (all 1936 models)
Really, any 1932-1938 8 inch Philco speaker with an 1125 to 1140 ohm field coil can be made to work with the proper output transformer made to match a single 42 or 6F6G tube to a 1 ohm voice coil. For more ideas, look over the Philco Speakers spreadsheet - speakers.zip - available here:
https://philcoradio.com/phorum/showthread.php?tid=215
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Ron Ramirez
Ferdinand IN
