Youyi 友谊 714
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| Year: 1968 ?? | Category: Broadcast Receiver - or past WW2 Tuner | ||||
| Semiconductors (the count is only for transistors) | 7: 3DGM 3DGM 3DGM 3AX31A 3AX31A 3AX31A 3AX31A 2CP 2CP 2AP9 2AP9 |
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| Main principle | Superheterodyne (common); ZF/IF 465 kHz; 3 AF stage(s) |
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| Tuned circuits | 5 AM circuit(s) |
| Wave bands | Broadcast only (MW). |
| Details | |
| Power type and voltage | Dry Batteries / 3 Volt |
| Loudspeaker | Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) |
| Power out | |
| from Radiomuseum.org | Model: Youyi 友谊 714 - Nantong 南通无线电厂 Nantong |
| Material | Plastics (no bakelite or catalin) |
| Notes | The model Youyi 友谊 714 (Friendship) has the following key features 主要性能: Frequency range 频率范围: broadcast band 535 - 1605 kc. Sensitivity 灵敏度: < 2 mV/m. Selectivity 选择性: > 14 dB S/N. Set audio output 额定功率: 100 mW. Electric power consumption 电源消耗 at zero signal 零信号: 20 mA, at max. it is 100 mA. The IF 中频频率 is most probably 465 kc. Loudspeaker impedance is 8 ohm. 4 diodes. |
| Literature/Schematics (1) | 02-Radio Manual unknown date, 380 pages (page 294.) |
Model page created by Ernst Erb. See "Data change" for further contributors.
All listed radios etc. from Nantong 南通无线电厂 Nantong Radio Factory; Nantong (Jiangsu, E)
Here you find 10 models, 2 with images and 9 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
