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Admiral - Air Castle - Radolek
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All these radios with 11" Oval dial made in 1936-1937 and sold under five brand names Aeronautic, Air Castle (Spiegel Inc.), Admiral (Continental Radio & Television Corp.), Knight, and Radolek. All radios shared the same large glass dial, wooden knobs, and grill cloth type. All companies built almost the same sets of chassis (AM3, AM4, M5, AM6, AM7, AM8), used almost the same cabinets, and service instruction looks exactly the same.
Service Info
| Air Castle - Spiegel Inc. |
| Chassis # |
John F. Rider |
Bands |
Tubes |
Models |
| AM3 |
10-47 |
4 |
8 |
(6K7, 6A8, 6K7, 6Q7, 6L6, 6G5, 2-5W4) |
6506 6554 |
| M5 |
10-7 |
3 |
7 |
(1C6, 2-34, 3-30, 19) |
178 6708 6754 |
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10-4 |
Alignment Data and Servicing (1936). Chassis M5. |
| AM6 |
10-48 |
4 |
10 |
(6K7, 6A8, 6K7, 6Q7, 6K7, 2-6L6, 6G5, 2-5W4) |
6508 6556 |
| AM7 |
10-49 |
3 |
11 |
(6K7, 6A8, 2-6K7, 6H6, 2-6C5, 2-6F6, 6G5, 5Z4) |
5054 5062 6570 6580 6582 6590 |
| Admiral Corporation. - Continental Radio & Tel. Corp. |
| Chassis # |
John F. Rider |
Bands |
Tubes |
Models |
| AM4 |
11-08 |
3 |
12 |
(6K7, 6A8, 2-6K7, 6H6, 6K7, 6C5, 2-6L6, 6G5, 2-5Z4) |
AM488 |
| M5 |
11-12 |
3 |
7 |
(1C6, 2-34, 3-30, 19) |
M551 |
| AM7 |
11-20 |
3 |
11 |
(6K7, 6A8, 2-6K7, 6H6, 2-6C5, 2-6F6, 6G5, 5Z4) |
??? |
| AM8 |
11-22 |
3 |
19 |
Chassis I
(6K7, 6A8, 2-6K7, 6H6, 6K7, 6C5, 6G5, 2-5Z4)
Chassis II
(85, 6D6, 42, 4-45, 80, 83V)
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AM889 |
| Admiral Corporation. |
| Chassis # |
John F. Rider |
Bands |
Tubes |
Models |
| AM3 |
15-1,2,3 |
4 |
8 |
(6K7, 6A8, 6K7, 6Q7, 6L6, 6G5, 2-5W4) |
M351 |
| AM6 |
15-21,2,3 |
4 |
10 |
(6K7, 6A8, 6K7, 6Q7, 6K7, 2-6L6, 6G5, 2-5W4) |
???? |
| Aeronautic. |
| Chassis # |
John F. Rider |
Bands |
Tubes |
Models |
| AM8 |
11-22 |
3 |
19 |
Chassis I
(6K7, 6A8, 2-6K7, 6H6, 6K7, 6C5, 6G5, 2-5Z4)
Chassis II
(85, 6D6, 42, 4-45, 80, 83V)
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| Knight. |
| Chassis # |
John F. Rider |
Bands |
Tubes |
Models |
| ??? |
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??? |
| Radolek. |
| Chassis # |
John F. Rider |
Bands |
Tubes |
Models |
| AM3 |
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4 |
8 |
(6K7, 6A8, 6K7, 6Q7, 6L6, 6G5, 2-5W4) |
Beam Power |
| M5 |
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3 |
7 |
(1C6, 2-34, 3-30, 19) |
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| AM6 |
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4 |
10 |
(6K7, 6A8, 6K7, 6Q7, 6K7, 2-6L6, 6G5, 2-5W4) |
Etherscope |
| AM8 |
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3 |
17 |
???
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Stratosphor |
CABINETS
Air Castle
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| Chassis M5 |
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Admiral
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| 39x22x13 |
Chassis AM7 Back |
Chassis AM6 Back |
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Model AM488 Model AM688 40.5x23x13 |
Model AM488 Chassis AM4 Back |
Model AM688 Chassis AM6 Back |
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Model AM889 Chassis AM8 |
Model AM351 Chassis AM3 |
Chassis M5 Chassis AM7 |
Chassis AM7 |
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Aeronautic
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| Chassis AM8 |
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Knight
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From Allied Radio Catalog 1937 |
Institutional Sound Systems Price $385 Effective sound distribution for schools, hospitals, hotels etc. |
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Radolek
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Model "Beam Power" Chassis AM3 |
Model "Beam Power" Chassis AM3 |
Model "Etherscope" Chassis AM6 |
Model "Stratosphor" Chassis AM8 |
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| Chassis M5 |
Chassis M5 |
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