Circuit Details - Second Mixer
before building this section.
Circuit Details - Crystal Oscillator/Amplifier
before building this section.
____Mount spacers on each side of the board on the four corners to provide support for insertion of parts and easy soldering. Picture |
Insert all the components that have their values inside the footprint. They are the following: ____15 - .01 capacitors (Bag 3) |
Solder ____6 - 100 ohm resistors (brown, black, brown) (Bag 3) |
Solder ____6 - 100K resistors (brown, black, yellow) (Bag 3) |
Solder Resistors:____2 - 1K (Bag 3), One is located on the left side of the 30/17 LED, and one is located on the right side of the 30/17 LED |
Solder Capacitors (Going left to right on the board):____2 - 100pf NPO (Bag 3), Located at the left side and above the FET (2N5486). Orange color, short leads flared out, labeled "101". |
Solder Other Parts:____5 - LEDs (Bag 3), Red colored, match the flat on the LED to the flat on the footprint. The short lead is on the same side as the flat. Note: Tin all the leads on the transformers - T4-6T and T1-1T - as the pads they solder to are small. This will make a solid solder joint. Wipe the excess solder to the top of the pin so it will fit in the holes. |
Solder ____3 - MOSFETS (Bag 2), (Picture) static sensitive part, touch a ground wire before taking it out of the bag, notice the dot on MOSFET (may be difficult to see, hold at an angle to a light source and you can see the shadow of the dot), the dot is located to the left of the second line of the text on the MOSFET. A dot is placed outside the footprint so that you can double check your placement after it has been soldered to the PCB. The leads on each side of the part need to spread apart slightly to fit the footprint. |
Solder Crystals____1 - 4.000MHz crystal (Bag 4), The markings are "4000 KSS 2FT". |
Solder |
____Check the dot on the MOSFETs and the Minicircuits transformers. |
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