Macsense Connectivity Digital Wattmeter DWM-4 - Manual (Page 7)

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HF/QRP Remote Sensor Assembly Instructions
___ Wind T1 with 10 turns using the red and green #28 gauge wire. T1 is the small, black toroid just
under one half inch in diameter. See picture below and wind this in bifiliar fashion by using two
lengths of wire and winding them at the same time. It doesn’t matter if you twist them or wind
them side by side. Note: you must wind this in the direction shown in figure 2.
___ After scraping the insulation from the ends of all four wires, connect the green 2 wire to the red 1
wire and twist together. You will now have three leads: the red wire on the left, the twisted pair
and the green wire on the right. Do not install T1 yet.
___ Install all of the resistors, R1, 2, 3 and 4.
___ Install the 1N4148 diodes, D1 and D2. Note the band polarity.
___ Install 10 uH Chokes, RFC1, 2 and 3.
___ Install the .01uf monolithic capacitors, C1 and C2.
___ Install the ceramic capacitor, C3 100pf 1KV.