fm oscillator with bly87


Posted on Feb 5, 2014

C1=100nF Multilayer or ceramic C2 : 4. 7 pF ceramic C3 : 100 nF ceramic (1 or 10 nF will do also) C4 : 40 pf trimmer C5 : 4. 7 pF ceramic C6 : 10 pF ceramic C7 : 22 pF ceramic C8 : 1 nF ceramic C9 : 1 nF ceramic C10: 100 nF ceramic C11: 100 nF ceramic C12: 100 nF ceramic C13: 47 uF/25V C14: 1 nF ceramic L1 : 4 wdg, dia 8 mm, 1 mm CuAg, space 1 mm


fm oscillator with bly87
Click here to download the full size of the above Circuit.

; Mounted 8 mm above PCB (Leads are 4 mm) L2 : 6-hole ferroxcube wideband HF-choke (5 wdg) L3 : 6-hole ferroxcube wideband HF-choke (5 wdg) This package contains the schematic and PCB layout for the FM oscillator using the BF900 Dual Gate MOSFET, which is used between 90 and 110 MHz. and that he has a very low noise, and very stable. If you use the proper buffering, a PLL is not needed anymore. For BF900 mounting holes (diameter 6 mm) should be created in which the casing can survive in. I myself have a problem with the other side of the copper`, since the oscillator will not light (not really enough votes Just kidding). Was solved when I removed the copper BF900 (about 1 1. 5 cm diameter).




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Light Controlled Relays
    Intercom
    Safe-opamp-circuit
    Voltage Doublers
    Flame gas and smoke detector
    drawing Any idea which software was used to generate these circuit diagrams
    GPS-Disciplined 10 MHz Frequency Standard / GPS-Based Universal Time Clock
    Timed Burglar Alarm N/O - N/C
    ScratchBoard Emulator using Arduino Uno
    QCard Controller 68HC11 Processor
    Three single junction transistor time relay circuits



    Top