Wednesday, October 19, 2005

Desktop Power Supply from a PC modified for Rig

Here is a homebrew P.C. power supply modified for Rig usage but current is only limited to about 7 Amps. So if you want to power your VHF Amateur Radio at high power it will not take it!

Example on a ICOM IC-2100H at High Power will be 55Watts and it will consume 12Amps! This is too high current drain therefore the modified power supply will definately burn out in about 60 Minutes usage. But if you use Medium Power which is 10Watts. Then the modified power supply will be suitable for the usage. Just add a Amp meter in series with the Rig and powersupply to monitor the current drain will not get your powersupply burned out!


Happy Homebrewing


  • Setting Up a PC's Power supply to use with your Dc/DC battery charger

    By Blogger Rodney Yeo @, at 7:44 PM  

  • How To Use A PC Power Supply
    To Run An RC Battery Charger

    By Blogger Rodney Yeo @, at 8:02 PM  

  • here you can get convert computer power supply to 17Amp at 13.5v.


    By Anonymous Anonymous, at 10:51 PM  

  • I think the site controller should turn ON / activate the word verification function to prevent the comment spam.


    By Anonymous Anonymous, at 9:57 AM  

  • Thks LW..Have activated it.

    By Blogger 9W2SSJ, at 12:33 PM  

  • Using a single 7812 IC voltage regulator and multiple outboard pass transistors, this power supply can deliver output load currents of up to 30 amps for our VHF Rigs.

    For more circuits on Power Supply's please go to ....

    By Blogger Rodney Yeo @, at 4:38 PM  

  • Here is a 13 Volt 20 Amp PSU.

    This is a Regulated DC power supply with short circuit protection and with current limiter.

    This PSU has been especially designed for current-hungry ham radio transceivers. It delivers safely around 20Amps at 13.8V. For lower currents, a separate current limiting output, capable of 15ma up to a total of 20A has been added.

    Here is where you can find most Electronics Circuits Homebrew stuff.


    Happy HomeBrewing...

    By Blogger Rodney Yeo @, at 4:53 PM  

  • RF Circuits for 9M, 9W and SWL.

    This are good examples cuircits for SWL's who are preparing for the coming RAE Exams.

    Practice makes perfect!


    Good Luck...

    By Blogger Rodney Yeo @, at 4:59 PM  

  • Automatic Retransmitting Makeshift Repeater!

    This circuit will be of interest to the radio amateur and anyone posessing two radios, (one of which must be able to transmit i.e. a transceiver). It is a self powered (audio derived) repeater circuit for receiving a signal and re-transmitting it via the other radio.

    By Blogger Rodney Yeo @, at 5:11 PM  

  • Dear Hams,

    Have anyone of you bought your rig from websites?

    By Anonymous Anonymous, at 9:11 PM  

  • Get to know what type approved rigs you can import in to Malaysia?

    The Malaysian Communications and Multimedia Commission has issued a notice to exempt

    certification for certain types of communications equipment for holders of amateur

    radio operator's certificates (Class A or Class B).

    By Anonymous Anonymous, at 12:43 AM  

  • Dear All,

    Can anyone sell a rig model ICOM IC-208H? Please emailed me at with selling priced and availability?



    By Blogger Rodney Yeo @, at 12:58 AM  

  • why suddenly so quiet...where are all people gone?

    By Anonymous Anonymous, at 9:17 PM  

  • Dear 9W2SSJ,

    I can't seem to create any new posting anymore... since this last article... Was my account banned? Just checking...?



    By Blogger Rodney Yeo @, at 4:32 PM  

  • Looks like the thieves had fled to no where.

    By Anonymous Anonymous, at 7:05 PM  

  • Is this site got something to do with the thieves also?

    By Anonymous Anonymous, at 9:55 PM  

  • No shud still be able to post articles..u r still a team member.

    By Blogger 9W2SSJ, at 10:11 PM  

  • C'mon...proof yourself that here got nothing to do with the 40 thieves before more and more people suspect here is part of the 40 thieves activity blogs.

    By Blogger Hamtenna, at 1:46 PM  

  • Well I guess no one specific ham society or 40 thieves own this blogs. It is open to everyone who loves sharing homebrewing and technical information on Amateur Radio modification and many more!

    That is what ham radio is all about experimenting!

    By Blogger Rodney Yeo @, at 11:27 PM  

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