Setting Up the Parts and Pieces to Build an L-Network Antenna Tuner

 Inventory of parts for

L-Network antenna tuner


  1. Cookie tin box                                                     $        0.00

  2. PCB (Ebay)                                                        5.00

  3. 1.5 inch pvc (Lowes)                                                      3.00

  4. Brass screws and nuts/washers (Lowes)                   10.00

  5. On hand 2x so-239 connectors (Ebay)                        3.00

  6. On hand 2x knobs (Ebay)                        2.00

  7. On hand shims for insulation (Lowes)                     0.00

  8. Grommet Edging Nylon GE85-C (Ebay)                       5.00

  9. 1x Variable capacitor 4 gang (Ebay)                      8.00

  10. Insulated copper wire (Ebay)              8.00

  11. Ordered 1x 10 position switch (Ebay)                     9.00


Collecting all the parts is critical. Frankly, it is not easy. Looking at cost for a box can be approx $15.
Instead of buying one, I used a Kirkland cookie box (I ate the cookies last Christmas.)

Tools required

 Electric drill and quarter inch bit.

 Nibbler tool

 Screw driver (both straight and philips)

 Soldering iron

 Wire clippers


Stepwise building plan


  1. Cut PVC pipe completed

  2. Drill 10 holes in pipe

  3. Mount brass hardware

  4. Mount DE85C to pvc with silicone glue

  5. Wrap coil wire

  6. Install the completed coil

  7. Mount capacitor & 10 position switch

  8. Wire 10 pos to the PCB

  9. Connect 10 wires to coil

  10. Mount   2x  SO-239 to box

  11. Connect  wires to 2x SO-239

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