DFD1 Construction Pictures

Step 1

Place notches on IC sockets as shown by arrows.

Step 2

Solder in the .01 capacitors.

Step 3

Step 4

The DFD1 instructions ask that you put the 11 pin MALE header on this board. Either way works. I have always done it the wrong way, every time.

The 10K 10 turn pots are not mounted on the board when used with the receiver. They are tied to a relay that switches the correct values for the bands.

Step 5

A wire jumper is placed as shown on the image at the right side. The fine adjustment pot goes here, but is not used. A jumper from where the middle pin of the pot normally goes and ground sets the frequency offset of the fine adjustment to zero.

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Last Update: 9-30-2002
Web Author: David White, WN5Y