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STD SIMPLE_DC_RX
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Description
Приемник прямого преобразования.
Использовата типовая схема со смесителем SA612.
Схема ГПД взята отсюда - http://cxema.my1.ru/publ/radiosvjaz/radioperedatchiki/prijomnik_na_diapazon_160_metrov/58-1-0-4042
Диапазонные полосовые фильтры на все диапазоны взяты отсюда - https://vpayaem.ru/df1.html
Цель проекта, сделать простой и МАЛЕНЬКИЙ приемник, с минимум настроечных элементов.
Design Drawing
schematic diagram
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PCB
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Empty
| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | PHONE | PHONE1 | AUDIO-TH_PJ-307G5 | 1 |
| 2 | 78L06 | U4 | TO-92-3_L4.9-W3.7-P2.54-L | 1 |
| 3 | 1N4001 | D3 | DO-41_BD2.4-L4.7-P8.70-D0.9-RD | 1 |
| 4 | ANT | ANTENNA | CON-SMA-L | 1 |
| 5 | 10 | R2,R7,R6 | RES-TH_BD1.7-L3.5-P7.50-D0.5 | 3 |
| 6 | 68K | R1 | RES-TH_BD1.7-L3.5-P7.50-D0.5 | 1 |
| 7 | 10K | R3,R4 | RES-TH_BD1.7-L3.5-P7.50-D0.5 | 2 |
| 8 | dc-005 5.5-2.0 | DC1 | DC-IN-TH_DC005 | 1 |
| 9 | SA612A | U1 | DIP8 | 1 |
| 10 | 10uH | L3,L1,L4 | BL02RN2R1M2 | 3 |
| 11 | 34uH | L2 | BL02RN2R1M2 | 1 |
| 12 | BB910 | D1 | BB910_TO92 | 1 |
| 13 | LM386N | U5 | DIP-8_L9.7-W6.4-P2.54-LS7.6-BL | 1 |
| 14 | 100nf | C16,C19,C18,C1,C2,C3,C5 | CAP-CBB-7.2*2.5 | 7 |
| 15 | 10nf | C15,C8 | CAP-CBB-7.2*2.5 | 2 |
| 16 | 100pf | C9 | CAP-CBB-7.2*2.5 | 1 |
| 17 | 180pf | C7,C6,C11,C14 | CAP-CBB-7.2*2.5 | 4 |
| 18 | 16pf | C4 | CAP-CBB-7.2*2.5 | 1 |
| 19 | 47nf | C35 | CAP-CBB-7.2*2.5 | 1 |
| 20 | 680pf | C10,C12 | CAP-CBB-7.2*2.5 | 2 |
| 21 | 1800pf | C13 | CAP-CBB-7.2*2.5 | 1 |
| 22 | 1000pf | C21 | CAP-CBB-7.2*2.5 | 1 |
| 23 | 47K | TUNE | WH148-1A-2B | 1 |
| 24 | 10K | VOL | WH148-1A-2B | 1 |
| 25 | 1uH | L5 | ADJUSTABLE_INDUCTANCE_5X5 | 1 |
| 26 | 10uF | C38,C37 | CAP-TH_BD8.0-P2.50-D1.0-FD | 2 |
| 27 | 100uF | C20,C17 | CAP-TH_BD8.0-P2.50-D1.0-FD | 2 |
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