Royal 500 Ch= 7ZT40 "Revised"

Zenith Radio Corp.; Chicago, IL

Daten

Forum

Bilder

Sammlungen

Land
USA

Hersteller / Marke
Zenith Radio Corp.; Chicago, IL

Jahr
1957/1958

Kategorie
Rundfunkempfänger (Radio - oder Tuner nach WW2)

Radiomuseum.org ID
72556

- anderer Name: Chicago Radio Lab

Bilder
Schaltpläne

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 1831599) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (3)

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 1831601) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (3)

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 1831602) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (3)

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 1831603) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (3)

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 1831604) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (3)

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 1831605) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (3)

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 1831606) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (3)

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 61122) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (3)

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 1388386) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (1)

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 60846) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (2)

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 380052) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (1)

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 2439371) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (2)
Copy from Ebay seller aladdinsmall09.

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 1388391) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (1)

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 1388392) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (1)

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 1388393) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (1)

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 1388387) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (1)

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 1388389) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (1)

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 1388390) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (1)

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 380053) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (1)

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 380054) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (1)

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 380055) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (1)

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 380056) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (1)

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 2439372) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (2)
Copy from Ebay seller aladdinsmall09.

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 2439373) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (2)
Copy from Ebay seller aladdinsmall09.

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 2439374) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (2)
Copy from Ebay seller aladdinsmall09.

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 1213305) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (2)
Ebay User radios10467 Item 130676177375

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 1213306) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (2)
Ebay User radios10467 Item 130676177375

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 1213307) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (2)
Ebay User radios10467 Item 130676177375

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 1213309) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (2)
Ebay User radios10467 Item 130676177375

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 1213310) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (2)
Ebay User radios10467 Item 130676177375

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 1228264) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (2)
Ebay Seller xgman Item 320893212619

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 1388388) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (1)

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 2867295) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (1)
7ZT40 "revised" chassis

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 2867296) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (1)
7ZT40 "revised" chassis

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 2867297) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (1)
7ZT40 "revised" chassis

Royal 500 Ch= 7ZT40 'Revised'; Zenith Radio Corp.; (ID = 2867298) Radio — Zenith Radio Corp.; Royal 500 Ch= 7ZT40 'Revised' (1)
7ZT40 "revised" chassis

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Technische Daten

Anzahl Transistoren
7

Halbleiter
2N194 2N193 2N216 2N216 2N35 2N35 2N35 1N87G

Hauptprinzip
Superhet allgemein; ZF/IF 455 kHz; 2 NF-Stufe(n)

Anzahl Kreise
5 Kreis(e) AM

Wellenbereiche
Mittelwelle, keine anderen.

Betriebsart / Volt
Trockenbatterien / AA: 4 x 1.5 Volt

Lautsprecher
Dynamischer LS, keine Erregerspule (permanentdynamisch) / Ø 2.75 inch = 7 cm

Belastbarkeit / Leistung
0.1 W (0.18 W max./spitze)

Material
Plastikgehäuse (nicht Bakelit), Thermoplast

von Radiomuseum.org
Modell: Royal 500 Ch= 7ZT40 "Revised" - Zenith Radio Corp.; Chicago,

Form
Kleines Reisegerät oder «Taschengerät» < 20 cm.

Abmessungen (BHT)
3.5 x 5.75 x 1.5 inch / 89 x 146 x 38 mm

Bemerkung

The Zenith Royal 500 is a battery operated 7 transistor portable BC band radio. The tuning range is 540-1600kHz. The first 4 models are aluminum chassis, hand wired, point-to-point, and have 4 different chassis numbers due to limited quantities of transistors from manufacturing suppliers. The later 4 models are PCB and included vernier tuning. Chassis have chassis numbers along with a Color Code Dot in the battery compartment with labels in the same Color Code ink.

Year	Chassis Number	Chassis Type	Transistor Source	Color Code Dot	Cabinet Colors	Vernier Tuning
55/56	7XT40 Circuit #1	Hand Wired	Sylvania (NPN)	Black	R,Y	N
55/56	7XT40 Circuit #2	Hand Wired	Sylvania (NPN)	Maroon	R,Y	N
55/56	7XT40Z	Hand Wired	Raytheon (PNP)	Red	R,Y	N
55/56	7XT40Z1	Hand Wired	Texas Instr. (NPN & PNP)	Green	R,Y	N
56/57	7ZT40	PCB	Sylvania (NPN)	Magenta	R,W,Y	Y
56/57	7ZT40Z1	PCB	Texas Instr. (NPN & PNP)	Brown	R,W,Y	Y
57/58	7ZT40 "Revised"	PCB	Sylvania (NPN)	Magenta	L,R,V,W,Y	Y
57/58	7ZT40Z	PCB	Raytheon (PNP)	Orange	L,R,V,W,Y	Y

Color Codes:
L = Tan/Beige (rare); R = Maroon/Burgundy/Garnet Red (semi-transparent); V = Tango Pink (rare); W = White; Y = Black/Ebony.

Nettogewicht
1 lb 3 oz (1.187 lb) / 0.539 kg

Datenherkunft
-- Original-techn. papers.

Literaturnachweis
Zenith Transistor Radios (Pages 10-14, 20, 21)

Literatur/Schema (1)
Transistor Radios 1954-68 (Antique Radio Magazine n.61, June-July 2004, page 53 (Ita/Eng). Free at Aldo Andreani's website.)

Literatur/Schema (2)
- - Manufacturers Literature (Zenith Supplementary Service Manual No.2 "Royal 500" Chassis 7ZT40 "Revised" 7ZT40Z)

Radio a transistor tascabili americane: Zenith Royal 500 “Owl Eyes” (Per cortesia di L.Salvatore/ARM)

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netto 600 gr

Eckhard Wegner, 27.Aug.07

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Royal 500 Ch= 7ZT40 "Revised"

Zenith Radio Corp.; Chicago, IL

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Forumsbeiträge zum Modell: Zenith Radio Corp.;: Royal 500 Ch= 7ZT40 "Revised"

zenith: (Ch=7ZT40 7ZT40Z 7ZT40Z1); Royal 500