EME65B 400/500MHz OSCILLATOR KITS 
      Saturday 27th JANUARY 07

     

    CONSTRUCTION IMAGES OF THE EME65B PROTOTYPE KITS

     

    ABOVE IMAGE SHOWS HOW THE COMPONENTS ARE SOLDERED TO THE 500MHz VERSION OF THE EME65B KIT. TAKE NOTE HOW THE COILS ARE WOUND. MANY TUNE UP PROBLEMS CAN BE TRACED TO THE COILS BEING INCORRECTLY WOUND.

    ABOVE IMAGE SHOWS HOW THE COMPONENTS ARE SOLDERED TO THE 400MHz VERSION OF THE EME65B KIT. TAKE NOTE HOW THE COILS ARE WOUND. MANY TUNE UP PROBLEMS CAN BE TRACED TO THE COILS BEING INCORRECTLY WOUND.

    Above Pictures show the fitting of the Crystal & 50 deg C PTC Heater to the board, & mounting of the wire coils. The Crystals case must be connected to the top of the board with a wire link for stability. The PTC Heater is fitted up against the crystal & a short length of heatshrink is used to hold it in place against the crystal.

    Above Pictures show the SMD chip capacitors. Make sure that they are soldered correctly & have not been cracked. Many faults can be traced to these not being soldered on one end.

     

     

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