«Селга» на длинном ремешке. Полное описание. 60 лет назад

Selga transistor receiver. Detailed description of the circuit diagram. The secrets of non-obvious nuances of the scheme and design are revealed. What does the name Selga mean? Secrets of the production and development of the most popular portable receiver in the USSR. Content 00:00 The lamp era is coming to an end 1:21 Gauja training receiver 2:44 Start of Selga production 3:57 What is Selga like? 5:10 What does the word Selga mean? 6:49 Transistor means receiver 7:48 How much Selga could a Soviet family afford to buy? 11:38 Who broadcasts on medium and long waves? 12:35 Enemy voices and short waves 14:02 Orbita-2 receiver 15:13 Schematic diagram of the Selga receiver 16:03 Schematic diagram of the Gauja receiver 16:20 Block diagram of Selga and Gauja superheterodynes 17:07 Receiver input circuits 17:40 Why do they reduce the voltage of the useful signal at the input? 19:41 Why did you short-circuit the oscillating circuit of the long-wave magnetic antenna? 23:08 Why is there different sensitivity on MW and LW? 24:27 Heterodyne and mixer. Three point 25:34 Intermediate frequency filter 26:06 Intermediate frequency amplifier 26:59 Compensation of reverse junction capacitance and why it is needed 27:56 Germanium transistors are far from perfect 28:28 AM signal detector 29:02 LPF and AGC 29:26 Low frequency amplifier and its thermal compensation 31:39 Unnecessary resistor. For what? 32:19 Why such a narrow band of reproduced frequencies? 34:22 Sensitivity and shielded cameras 35:23 5G and fish 33:56 Strange screen 36:17 Printed circuit board and manufacturability 36:57 Setting the boundaries of wave ranges. How was it done? 38:09 Pairing input circuits. How was it done? 39:24 Why is the amplifier transistor shielded? 39:58 Why do we need sockets for transistors? 41:46 Earphone TM-2M 42:22 Video clip of the song “On a Long Strap” Support the channel – https://boosty.to/ensemb or   / ensemb   #Selga #RRR #Gauja #Radiotehnika Отправить отзыв