Loading ...
Sorry, an error occurred while loading the content.

Re: [softrock40] Switched 12 volt output hole???

Expand Messages
  • Tony Parks
    one other thing... If driving the base of an NPN transistor be sure to have a series resistor from S12V to the base of the transistor to limit the load current
    Message 1 of 3 , Jun 6, 2008
    • 0 Attachment
      one other thing... If driving the base of an NPN transistor be sure to have a series resistor from S12V to the base of the transistor to limit the load current on the S12V output.
       
       
      ----- Original Message -----
      Sent: Friday, June 06, 2008 3:05 AM
      Subject: Re: [softrock40] Switched 12 volt output hole???

      Hi Mike,
       
      No, the S12V hole is an output from the board that can be used to SIGNAL to some external device that the board is in TX mode.  The external load on S12V should be limited to a max of a few mA such as driving an NPN transistor base where the transistor is then controlling current in some external device.
       
      73,
      Tony KB9YIG
       
      ----- Original Message -----
      From: Mecsr
      Sent: Friday, June 06, 2008 2:58 AM
      Subject: [softrock40] Switched 12 volt output hole???

      Is the switched 12 volt output hole on the PC board of the RX/TX6.2
      used when one wants to put a switch in the circuit to turn power off
      and on???

      Mecsr MikeSr AB7OC

    Your message has been successfully submitted and would be delivered to recipients shortly.