YooFab RFLEGO - Table of Contents

Table of Contents
Main Characteristics................................................................................................................4
Bill Of Materials (Component List)...........................................................................................6
Circuit Diagram....................................................................................................................... 8
Circuit Operation..................................................................................................................... 8
Respect The Difference!.....................................................................................................8
No Signal!......................................................................................................................... 10
Common Base Differential Amplifier..................................................................................11
The Output........................................................................................................................11
Connectors.......................................................................................................................12
Common Instructions for all RFLEGO kits.............................................................................13
What is an electronic kit?..................................................................................................13
YooFabTM Electronic Kits:................................................................................................13
How to build your kit.........................................................................................................13
About YooFabTM electronic kit PCBs...............................................................................14
About RFLEGO.................................................................................................................16
Notes On Soldering Single Sided Surface Mount Boards.................................................17
Step By Step......................................................................................................................... 20
Printed Circuit Board.............................................................................................................21
Step 1............................................................................................................................... 21
Resistors R1 to R9................................................................................................................22
Step 2............................................................................................................................... 22
Step 3............................................................................................................................... 23
Step 4............................................................................................................................... 24
Step 5............................................................................................................................... 25
Capacitors C1, C2, C3, C4, C5, C6, C7................................................................................26
Step 6............................................................................................................................... 26
Step 7............................................................................................................................... 27
Transistors............................................................................................................................. 29
Step 8............................................................................................................................... 29
How to identify Base, Emitter and Collector on 2N2222 TO-92 transistor.....................30
WINDING THE TOROIDAL TRANSFORMER.......................................................................31
IMPORTANT..................................................................................................................... 31
Toroid winding step 1................................................................................................... 32
Toroid winding step 2................................................................................................... 33
Toroid winding step 3................................................................................................... 34
Toroid winding step 4................................................................................................... 35
Toroid winding step 5................................................................................................... 36
Toroid winding step 6................................................................................................... 37
Toroid winding step 7................................................................................................... 38
Toroid winding step 8................................................................................................... 39
Toroid winding step 9................................................................................................... 40
Toroid winding step 10..................................................................................................41
Toroid winding step 11..................................................................................................42
Toroid winding step 12..................................................................................................43
Toroid winding step 13..................................................................................................44
Toroid winding step 14..................................................................................................45
ASSEMBLY INSTRUCTIONS
RFLEGO Active Antenna Receiving Loop
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