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Zenith Royal 300 Zenith Royal 300
Zenith Royal 300, 1958
7 transistors: 121-21, 121.22, 121-70, 121-71, 121-7, (121-8, 121-8 matched pair) Chassis 7AT42. Tuning cap: "DEC 13 1957"

Sams Photofact
Brand Model Set Notes Pub year Schematic Inventory
ZENITH Royal 3000 TSM-33   Jan-1964 Check Stock
ZENITH Royal 30001 TSM-74   Sep-1966 Check Stock
ZENITH Royal 300F 412-16 (Ch. 7AT42Z1) 1958 Check Stock
ZENITH Royal 300F TSM-3-137   Apr-1959 Check Stock
ZENITH Royal 300F TSM-5-149   Mar-1960 Check Stock
ZENITH Royal 300R 412-16 (Ch. 7AT42Z1) 1958 Check Stock
ZENITH Royal 300R TSM-5-149   Mar-1960 Check Stock
ZENITH Royal 300Y 443-19 (Ch. 7AT42) 1959 Check Stock
ZENITH Royal 300Y TSM-5-149   Mar-1960 Check Stock
Michigan Antique Radio Club (MARC)
The Michigan Vintage Electronics Club has a "garage sale" event during Plymouth, MI's Old Village Yard and Trunk Sale, April 26 8am-3pm. Located on Mill St near the RR tracks.
The next Vintage Electronics Expo will be on Saturday, October 4, 2025, 9 am to 3 pm in partnership with The Kalamazoo Hamfest.
at the Kalamazoo County Expo Center, 2900 Lake St., Kalamazoo, MI
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