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Tools Needed

□ Temperature Controlled Soldering Station with small tip

   or 15-35 watt soldering iron with small tip.

□ Solder 60/40 or 63/37 Tin-Lead
□ Small Diagonal Cutters

□ Small Needle Nose Pliers
□ Pencil, Pen, and/or Highlighter

□ BRIGHT work light

Optional

□ Magnifying headpiece or lighted magnifying glass.

□ Multi-meter
□ Solder Sucker or Solder Wick

□ Knife or Wire Stripper
□ Cookie Sheet to build in and keep parts from jumping onto the floor.

Construction Techniques

□ Please take time to inventory the parts before starting.  Report any shortages to QRPKITS.com (In 

many cases it may be faster and cheaper to pull a replacement from your parts supply, but please 

let us know if we missed something.)

□ Pre-sorting the resistors and capacitors can speed up the assembly and reduce mistakes. 

□ There is no need to print out the whole assembly manual unless you want a copy.  Print the Parts 

List and Schematic (last two pages) then view the rest of the manual on a computer, laptop, or 

tablet.  The Parts List has columns for inventory and construction.

□ You can insert several parts at a time onto the board.  When you insert a part bend the leads over 

slightly to hold the part in place, then solder all at the same time.  Clip the leads flush.

□ Most parts should be mounted as close to the board as possible.  Transistors should be mounted 

about 1/8” above the board.  Solder one lead on ICs or IC sockets and then check to make sure the
component is flush before soldering the remaining leads.

□ Use a Temperature Controlled Soldering Station with small tip or 15-35 watt soldering iron with 

small tip.  Conical or very small screw driver tips are best.  

□ DO NOT use a large soldering iron or soldering gun.
□ If you are a beginner, new to soldering, there are a number of resources on the web to help you 

get on the right track soldering like a pro.  Google Soldering Techniques.  

Easy TR Switch 20170209   

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Содержание Easy TR Switch

Страница 1: ...nually through use of control lines to disable the automatic switching and to control switching through grounding a control line It also has a control lines to disable automatic switching and to manua...

Страница 2: ...unless you want a copy Print the Parts List and Schematic last two pages then view the rest of the manual on a computer laptop or tablet The Parts List has columns for inventory and construction You c...

Страница 3: ...Monolythic Capacitor marked 22 or 220 1 100pF C1 alternate Monolythic Capacitor marked 101 2 0 1uF C3 C4 Monolythic Capacitor marked 104 1 4 7uF C2 Tantalum polarized capacitor marked 4u7 or 475 1 2N...

Страница 4: ...R1 10K Ohm 1 4W Brown Black Orange Gold R2 10K Ohm 1 4W Brown Black Orange Gold R3 10K Ohm 1 4W Brown Black Orange Gold R4 100K Ohm 1 4W Brown Black Yellow Gold Capacitors C1 22pF or 47pF or 100pF mo...

Страница 5: ...he TX inputs and switch at about 100mW of RF and can be used over a frequency range of 160 6M and up to 100 Watts of RF under matched conditions Manual switching can be enabled by grounding pin 3 B of...

Страница 6: ...er you will only need to use the ANT RX and TX connections The Auxiliary contact set can be utilized to mute audio of a receiver by switching its output to a resistor during transmit instead of the sp...

Страница 7: ...ooking at the back of the board As a guide the trace locations are shown in the drawing below The additional switched contacts if used are connected in the same manner X1 Control and Power input Pin 1...

Страница 8: ...nnections as indicated above When applying RF to the TX input you should hear the relay click If possible test at 7 10Mhz first to verify function and if not working at low or high frequencies increas...

Страница 9: ...Schematic Easy TR Switch 20170209 9...

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