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Zenith 7H820 resto
#10

EdHolland Wrote:  I am always a bit fascinated by sets that have the 44MHz band I FM, just because it is a somewhat obscure historic artifact.

I own a Philco 42-355 with Major Armstrong's FM band. It is my only antique radio with FM. My military SG-3U  AN/URM-70 FM signal generator is my source for listening to it. It sounds very good when using the external modulation input. Although the lowest frequency for the SG-3U is specified at 50 MHz, it tunes a little below that so I can easily use it at the top end of the old FM band. As a semi-retired broadcast engineer I have a couple of FM processors which provide pre-emphasis. The old band used the same 75 kHz deviation and 75 us pre-emphasis as the current FM band.

Dale H. Cook, GR/HP/Tek Collector, Roanoke/Lynchburg, VA
https://plymouthcolony.net/starcity/radios/


Messages In This Thread
Zenith 7H820 resto - by TV MAN - 07-11-2026, 11:21 PM
RE: Zenith 7H820 resto - by tbone - 07-12-2026, 06:36 AM
462ron - by 462ron - 07-12-2026, 08:15 AM
RE: Zenith 7H820 resto - by radiorich - 07-12-2026, 12:15 PM
RE: Zenith 7H820 resto - by Arran - 07-22-2026, 01:35 AM
RE: Zenith 7H820 resto - by TV MAN - 07-22-2026, 11:46 AM
RE: Zenith 7H820 resto - by EdHolland - 07-24-2026, 03:48 PM
RE: Zenith 7H820 resto - by TV MAN - 07-25-2026, 01:24 PM
RE: Zenith 7H820 resto - by rfeenstra - 07-25-2026, 11:46 PM
RE: Zenith 7H820 resto - by DaleHCook - 07-26-2026, 07:54 AM
462ron - by 462ron - 07-26-2026, 08:13 AM
RE: Zenith 7H820 resto - by MrFixr55 - 07-26-2026, 09:01 AM
RE: Zenith 7H820 resto - by EdHolland - 07-26-2026, 11:28 AM
RE: Zenith 7H820 resto - by radiorich - 07-26-2026, 12:28 PM
RE: Zenith 7H820 resto - by Paul Philco322 - 07-26-2026, 12:45 PM
RE: Zenith 7H820 resto - by TV MAN - 07-26-2026, 03:02 PM
RE: Zenith 7H820 resto - by EdHolland - 07-27-2026, 01:57 PM



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