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Mystery radio -- Philco?
Ron Ramirez
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Posts: 13,776
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Joined: Sep 2005
City: Ferdinand State, Province, Country: Indiana
#8

09-01-2017, 09:34 PM
The 54, 57, and 58 had it in back, like that. It's just a simple SPST switch that connects a 325 pF capacitor into the secondary of the antenna coil. (In model 54, the switch shorts out part of the antenna coil secondary.) This allows the set to (sort of) pick up frequencies above 1500 kc; this band of frequencies was used in ye olden days by police departments.
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Ron Ramirez
Ferdinand IN
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Messages In This Thread
Mystery radio -- Philco? - by RodB - 08-30-2017, 09:49 AM
RE: Mystery radio -- Philco? - by OldRestorer - 08-30-2017, 10:08 AM
RE: Mystery radio -- Philco? - by RodB - 08-30-2017, 02:45 PM
RE: Mystery radio -- Philco? - by Radioroslyn - 08-30-2017, 05:44 PM
RE: Mystery radio -- Philco? - by Ron Ramirez - 08-31-2017, 06:09 AM
RE: Mystery radio -- Philco? - by RodB - 09-01-2017, 08:40 PM
RE: Mystery radio -- Philco? - by Ron Ramirez - 09-01-2017, 09:34 PM



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