«Селга» на длинном ремешке. Полное описание. 60 лет назад
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Selga transistor receiver. Detailed description
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
Patreon: ensemb
#Selga #RRR #Gauja #Radiotehnika
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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
Patreon: ensemb
#Selga #RRR #Gauja #Radiotehnika
Отправить отзыв
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