QRPGuys Iambic Mini Manual Download Page 5

 

Page 5 of 7 

 

 

 

iambic_paddle_w-base_assy_021816.pdf 

 
 

This completes soldering the mechanical pieces. Continue the building the kit by soldering the electrical 
components. Use the figure below for the part placement. 
 

 

 

Parts placement figure 

 

 
[   ] 

Install the two 3 pin headers. 

 
[   ] 

Install J1, the 3.5mm audio jack where indicated. 

 
 
The  attached  cable  for  input  to  your  transmitter  is 

optional

.  You  can  use  a  male/male  3.5mm  stereo 

jumper, or fabricate a permanently attached cable of your own choosing. We provide one male 3.5mm 
stereo  plug  and  a  small  cable  tie  to  attach  your  cable  for  that  option.  You  supply  your  own  three 
conductor cable. Use the ground connection on the plug as the common and connect that color wire to 
the  #2  pad  on  the  PCB.  The  ring  and  tip  for  the  other  two  connections,  #1  and  #3.  The  two  Berg 
jumpers on the PCB accommodate either combination for the dit/dah and ring/tip orientation.  
 
This completes the electronic pcb assembly. 
 
 

Assembling the center contact: 
 

Finish the mechanical assembly of the center contact as shown in the figure below. 

 
 
 

 

 
 
 
 
 

Summary of Contents for Iambic Mini

Page 1: ...her 4 2 SS lock washer 4 2 x 187 L nylon spacer 1 2 x 3 4 L nylon spacer 1 2 56 x 1 L SS pan head Phillips screw 2 1 2 x 1 vinyl caplug 2 1 2 wide x 2 L plastic shim 1 4 x 1 8 black cable tie 4 Silicone self adhesive foot 6mm Even if you have done radio kit assembly before please read through all the instructions before you start This kit is a little different in that the mechanical components are...

Page 2: ...chanical assembly soldering you do you will use the same technique You tack a single tiny point first and then check to see that it is square and aligned with the registration points It is easy to re heat the joint and adjust the alignment when there is only a single point Then you tack the other pads before you do the finish soldering ...

Page 3: ...be centered between both leaf holder registration marks The gage will stay in this position until the backstop and both leaf holders are soldered You only slightly tack a point on one intersecting pad and then check to see that it is square to the base aligned with the registration points and flush with the sides If it is not do not try the bend it to fix it you will lift the pad off the surface Y...

Page 4: ...re they intersect the backstop If all is in alignment go back and finish soldering all of the pads Remove the alignment gage nylon spacer 1 long screw nut and solder the inside pads between the base and leaf holders Solder the 4 40 brass nut to the assembly using the figure below as a guide It is helpful to rub the brass nut on some scotchbrite or emery paper to remove any oxidation on the brass U...

Page 5: ...r fabricate a permanently attached cable of your own choosing We provide one male 3 5mm stereo plug and a small cable tie to attach your cable for that option You supply your own three conductor cable Use the ground connection on the plug as the common and connect that color wire to the 2 pad on the PCB The ring and tip for the other two connections 1 and 3 The two Berg jumpers on the PCB accommod...

Page 6: ... need final adjustment prior to use There is also some clearance between the contact washer and the O D of the holding screw allowing the washer to be moved to the side The paddle leaves can easily be bent to accommodate different tensions and distances The 010 thickness paddle leaves provide a light touch A user could use thicker material for a stiffer touch Cut the vinyl caplug lever cover 3 4 l...

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