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Recent content by jeffry_vb

  1. J

    GSM/Gprs Modem power supply

    gsm module 5v supply thx for explanation, i'll try it...
  2. J

    GSM/Gprs Modem power supply

    gprs modem capacitor i look at your schematic that Vin = 9 V, if i use 12 V adaptor or i use 12V accu, is the output can i get the range from 3,5V-4,5V just with adjust the potentiometer??
  3. J

    Problems with SIM300 as it doesn't detect the sim card

    free sim300 datasheet what antenna that can be connect to Murata MKTX92xxxx connector??? anyone can help me?? i'm just confusing with this problem??
  4. J

    How to supply power to SIM300 without using battery?

    4v 2a psu can someone attach the schematic of LM 317 that is no problem wih 2A current supply for SIM300??
  5. J

    Power supply for SIM300

    LM 350 need 28 Volt Vin ??? Or it just can be 12 V if i need the output voltage around 4V?

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