Please click your language flag. Bitte Sprachflagge klicken.

Youyi 友谊 714

Youyi 友谊 714; Nantong 南通无线电厂 (ID = 802635) Radio
Youyi 友谊 714; Nantong 南通无线电厂 (ID = 802636) Radio
Use red slider bar for more.
Youyi 友谊 714; Nantong 南通无线电厂 (ID = 802635) Radio
Select picture or schematic to display from thumbnails on the right and click for download.
Country:  People's Republic of China
Manufacturer / Brand:  Nantong 南通无线电厂 Nantong Radio Factory; Nantong (Jiangsu, E)
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
Main principle Superheterodyne (common); ZF/IF 465 kHz; 3 AF stage(s)
Tuned circuits 5 AM circuit(s)
Wave bands Broadcast only (MW).
Power type and voltage Dry Batteries / 3 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
Power out
from 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.