Jewel Case Q4 Late
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Pye Ltd., Radio: Jewel Case Q4 [Radio] ID = 1479829 640x480
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| Year: 1960 | Category: Broadcast Receiver - or past WW2 Tuner | ||||
| Semiconductors (the count is only for transistors) | 7: Tr_XXXX |
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| Main principle | Superheterodyne (common); ZF/IF 470 kHz; 3 AF stage(s) |
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| Tuned circuits | 5 AM circuit(s) |
| Wave bands | Broadcast (MW) and Long Wave. |
| Details | |
| Power type and voltage | Dry Batteries / 9 Volt |
| Loudspeaker | Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) |
| Power out | |
| from Radiomuseum.org | Model: Jewel Case Q4 [Late] - Pye Ltd., Radio Works; |
| Material | Various materials |
| Shape | Portable set > 8 inch (also usable without mains) |
| Notes | Early production used 6 transistors. Later production used 7 transistors of the type "Green Circle". The additional transistor is used as an AF amplifier. |
| Circuit diagram reference | Radio and TV Servicing books (R&TVS) book |
| Mentioned in | -- Original-techn. papers. |
Model page created by Peter Hoddow. See "Data change" for further contributors.
All listed radios etc. from Pye Ltd., Radio Works; Cambridge
Here you find 577 models, 422 with images and 336 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
