MagicBox V1R2B Especificações

Assembly ManualV1R2B-Rev1.0Dfor 4 State QRPMagicBox - Solid State Transmit/Receive SystemDesigned by: Jim Kortge, K8IQYCopyright 2009-2012 - All righ

Diodes[ ] Install the 1N5818 (black body - marked 1N5818) diode at D1. [ ] Install the 1N459A (black body - marked 1N459A) diode at D2. Save one lea

Regulators (look like transistors with 3 leads)[ ] Install the 10 volt (black body - marked 750L10C) regulator at IC1.[ ] Install the 5 volt (black bo

TransistorsTransistors will be installed in groups so that testing can be performed. After successful testing, the next group will be added. Using th

[ ] Write down your results/observations______________________________________________________________________________________________________________

Operational ChecksIf an RF Signal Generator is available, connect it to the Antenna Out BNC connector J3. If no signal generator is available, connect

With both receiver and transmitter connected to the MagicBox, key the transmitter several times and assure that the receiver is being muted except for

Connection DiagramNote: The audio connection from the receiver should be wired to the MagicBox using a stereo plug on the MagicBox end, with the grou

Packaging ConsiderationsNow that you've completed your MagicBox T/R System, you may have decided to put it into some kind of enclosure. This docu

MagicBox SpecificationsGeneralSystem 160 through 10 meter operation5.3" X 4.0 " PCB, fits TenTec TP-41 caseApproximately 120 partsBeginning

Bill of Material19

The next pages contain an image of the supplied printed circuit board and the schematics for the system.2

Instructions for Winding T1 and T2Start by marking each core with a "dot" on one end using a blue "Sharpie" marking pen. Touch the

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PCB StuffingStuffing the PCB will be done by installing all of the connectors and headers. Following that, all of the resistors will be installed, sta

Your PCB should look like this:Resistors[ ] Install the large, 1 watt, 180 Ohm (Brown-Grey-Brown) resistor at R12. This is the only 1 watt resistor;

[ ] Install the 1K trimmer resistor (blue potentiometer) at R32.Your PCB should now look like this:Capacitors[ ] Install 0.02 uF (green color - mark

Your PCB should now look like this:8

Inductors/Transformers[ ] Install 100 uH (beige color - marked Brown-Black-Brown) molded inductors at L1, L3 and L4. These look a bit like fat, 1/4 w